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020 ISBN: should match
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The 040 field is designated for providing the name of the organization(s) that created the original record, assigned MARC content designation and transcribed the record into machine-readable form or modified an existing MARC record. Every agency that creates records has a designated 3 letter code, which is identified in subfield a. A 3 letter language code, used in subfield b, is used to specify the language in which the material is cataloged, if there is no “ǂb eng” then add it. Subfield c shows the agency that input the record into a shared cataloging system. The same 3 letter code assigned to agencies is used and is usually the same agency that created the record. The most common agency code you will see is DLC (which is the Library of Congress). The most important thing to know about this field is that it is different in AACR2 than it is in RDA (a subfield e = “rda” must be used to show that RDA rules were used to create the record. So, if the record is RDA and there is a 040 without the subfield e of “rda” it needs to be added.
AACR2: RDA:
040 ǂa DLC ǂb eng ǂc DLC 040 ǂa DLC ǂb eng ǂe rda ǂc DLC
040 ǂa UUS ǂb eng ǂc UUS 040 ǂa UUS ǂb eng ǂe rda ǂc UUS
041 Language Field
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*For multi-volume sets: Acquisitions may create an order item for each volume (if so, transfer and attach all the order records to the same bibliographic record after copy cataloging), AND/OR there may already be a full bibliographic record in Sierra (if so, just create a new item for the volume which needs to be added into the system and change the 049 field to reflect what the library holds).
050/090 LC Call Number
Call numbers are made up of a Classification number that is assigned according to the subject contents of the item, along with one or two “cutters” and the date of publication. Library of Congress Classification Numbers include one or two letters indicating the subject accompanied by numbers. The classification number and the first cutter number, if there are two, are entered in subfield a, while the second cutter and the date are entered in subfield b. If there is only one cutter number the classification number is entered in subfield a, and the cutter number and the date are entered in subfield b. *There should always be a period at the beginning of the first cutter.
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