The elements of description provided in DCRM(B) constitute a full set of information for describing rare materials. This appendix sets out a less-than-full level of description containing those elements required by the Program for Cooperative Cataloging (PCC) in its standard for core-level records for rare materials. The core record standard was defined by the PCC for use within the context of its national cataloging program, BIBCO, to support the goal of providing cost-effective cataloging that meets commonly accepted standards.
Although the core record standard originated with the BIBCO program, it can be used by any library, BIBCO participant or not. Headings on all DCRM(B) core-level records contributed to BIBCO must be supported by authority records in the LC/NACO and LC/SACO Authority Files, with the exception of certain series headings. Authority records are not required for headings on other DCRM(B) core-level records.
Catalogers may apply the core-level standard to any rare materials described using DCRM(B), with one exception: it is not to be applied to books printed before 1501 (incunabula). DCRM(B) core-level records are especially appropriate when faithful and accurate descriptions are desirable, and the provision of subject and other access points is important, but abridged transcriptions and fewer notes are acceptable.
For rare books, the commitment, on the cataloger’s part, is to render bibliographic details of the book as accurately as possible insofar as they are presented by the specimen in hand; also, to ensure that they are scrupulously stated, according to the provisions of DCRM(B). The strength of DCRM(B) is that it provides for “expanded coverage” of books deserving such treatment; conversely, it is possible to use those provisions for expansion as guidelines for trimming the description. By omitting most notes and taking the options given in DCRM(B) for abbreviating descriptive areas, or by not taking the options to expand the same areas, an effective DCRM(B) core-level record can be created.
Use the guidelines set forth below, taken from the BIBCO Core Record Standards, to create core-level records using DCRM(B).
Depending on the individual automated system or bibliographic utility, part or all of the leader and directory may be system-supplied. Generally speaking, the cataloger will have to supply values for the following leader positions:
06 Type of record
07 Bibliographic level
17 Encoding level
18 Descriptive cataloging form
Give the encoding level (Leader/17) a value of 4 to indicate a core-level record.
These fields are generally system-supplied.
Code the following positions of the Microform 007 if appropriate:
00 Category of material
01 Specific material designation
Code at least the following positions:
06 Type of date/Publication status
07-10 Date 1
11-14 Date 2
15-17 Place of publication, production or execution
22 Target audience
23 Form of item
28 Government publication
33 Literary form
34 Biography
35-37 Language
38 Modified record code
39 Cataloging source
Mandatory if applicable.
Mandatory if applicable.
Bibliographic records for books that reflect the DCRM(B) core-level standard must contain the designation “dcrmb” in subfield ‡e of field 040.
For DCRM(B) core-level records contributed by members of the PCC BIBCO program, include the designation “pcc” in field 042. For other DCRM(B) core records, leave the field blank.
Assignment of at least one classification number from an established classification system recognized in MARC 21 Format for Bibliographic Data is encouraged, but not mandatory.
Since institutional practices for rare books often involve locally formulated call numbers, a requirement for a national standard classification could cause additional or undue effort for creators of DCRM(B) core-level records. However, if an institution supplies standard call numbers to materials covered by the DCRM(B) core record standard, it is encouraged to add these numbers in the appropriate call number field.
Mandatory if applicable. Headings on all DCRM(B) core-level records contributed to BIBCO must also be supported by national-level authority records. Authority records are not required for headings on other DCRM(B) core-level records.
Mandatory if applicable. Supply a uniform title if it is known or can be readily inferred from the publication .
Mandatory if applicable. One of the basic differences between AACR2 and DCRM(B) is the method and extent to which bibliographic details (fields 245-4XX) are recorded. As to method, bibliographic details should be recorded as correctly as possible, according to the descriptive conventions expected for the field. As to extent, DCRM(B) provides some options for abridging descriptive fields, and creators of core-level records for rare books are encouraged to implement these options wherever appropriate.
Subfield ‡a is mandatory; all other subfields are mandatory if applicable. Subfield ‡h is mandatory for microforms.
Mandatory if applicable. Use judgment in assessing each item or collection and assign a complement of title variants that covers variations deemed important. The variants assigned are intended to reflect cataloger judgment and/or local institutional policy.
Mandatory if applicable.
Subfield ‡c is mandatory. Supply the data appropriate to subfields ‡a and ‡b if readily available; otherwise, use "[S.l.]" and "[s.n.]" as appropriate. All other subfields are mandatory if applicable.
Subfield ‡a and subfield ‡c are mandatory. All other subfields are mandatory if applicable.
Mandatory if applicable. Transcribe all series as found on the publication in either a 490 or a 440 field. For DCRM(B) core-level records being contributed to BIBCO, all traced series must be supported by a national-level authority record. Untraced series need not be supported by a national-level authority record. If a national-level series authority record already exists for the series, follow the first tracing practice indicated on the record and record the series and tracing appropriately (i.e., in a 490 field, a 440 field or a 490/8XX pairing).
In DCRM(B) core-level records, a note indicating the transposition of any title area elements in the transcription is mandatory if applicable. Other notes are not required in DCRM(B) core, except as indicated below, although they may be included, if considered important. Notes are not required to justify added entries.
Mandatory if applicable.
Mandatory if applicable.
Mandatory if applicable.
Mandatory if applicable. Supply as appropriate for collections, compilations, or for multipart monographs with separate titles.
Addition of citation notes as a means of abbreviating detailed description of the publication is encouraged. Prefer sources that provide the fullest or most authoritative information, to keep the number of citations to a minimum.
Mandatory if applicable. Use judgment in assessing the publication and, if appropriate, assign a complement of headings that provides access to the primary/essential subject of the work (as opposed to secondary or tertiary aspects) at the appropriate level of specificity. Assign such headings from an established thesaurus or subject heading system recognized by the MARC 21 Format for Bibliographic Data. In focusing on the primary subject, follow the conventions of the particular subject heading system being used, including the use of paired or related headings where necessary to represent the subject fully.
Addition of genre/form terms to the DCRM(B) core-level record is encouraged if local policy calls for use of such terms, as appropriate to the piece. Prefer terms found in the official thesauri maintained by the RBMS Bibliographic Standards Committee; terms from other authorized thesauri (e.g., the Art and Architecture Thesaurus) may also be used as appropriate.
Mandatory if applicable. Use judgment in assessing each item and assign a complement of added entries that covers the primary relationships associated with the manifestation of which the item is a part. The inclusion and importance of added entries are intended to reflect individual cataloger’s judgment and/or local institutional policy.
Headings on all DCRM(B) core-level records contributed to BIBCO must be supported by national-level authority records. Authority records are not required for headings on other DCRM(B) core-level records.
Mandatory if applicable.
These thesauri include: Binding Terms; Genre Terms; Paper Terms; Printing and Publishing Evidence; Provenance Evidence; and Type Evidence.
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