0xx - Control fields, Numbers, and Code Fields

020      ISBN: should match

The International Standard Book Number (known as and ISBN) is a unique number placed on a book so that it can be easily identified.  There are two types of ISBNs: a ten digit ISBN and a 13 digit ISBN.  Often the record will contain the ISBN numbers for different formats of the book, such as hardback, paperback, and/or an eBook.  This is fine; all of these should be kept.  The ISBN is usually found on the title page (t.p.) or the t.p. verso, colophon, back cover, or back of dust jacket.  Sometimes the number on the book will not match the ISBN stated on the record, or sometimes the 020 ISBN may be in a z subfield, meaning that the ISBN is obsolete and no longer used.  If the book otherwise matches the record, simply scan or type in the missing ISBN in a 020. 

040      Cataloging Source

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.

041      Language Field 

This field indicates the language of the item when the fixed field does not give enough information.  Accordingly, this field is only used if more information is needed for the patron to completely understand the nature of the item with regards to language.  For example, this field is used if the item is a translation or includes a translation.  This field is also used if the item contains text written in more than one language.  The language the text is written in is entered into a subfield a.  Each subsequent language should be entered into additional a subfields.  The original language the item was translated from is entered in a subfield h.  There is no punctuation between subfields, or following the abbreviations used to identify languages.     

049      Collection code, number of volumes/copies

The 049 field is used to indicate the specific collection where the book is located and to indicate what volumes or how many copies of the item we hold at the library.

Check this code to see that it correctly designates where the book is to be housed. The code used most often is UUSA which indicates that the book is located in the main circulating stacks.  But there are other codes for various locations in the library.  The codes used most often are:

*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.

Open

Check the call number.  USU uses the Library of Congress classification system and whenever possible attempts to use the call numbers assigned to an item by the Library of Congress. However, there are occasions when these numbers may need to be adjusted so that the item will be in the proper order in the library shelves. LC assigned call numbers are usually listed in the 050 field, while 090 fields are used for call numbers that have not been assigned by the Library of Congress. Numbers in a 050 field should not be changed unless there is a 4 in the second indicator which means an entity other than LC assigned the call number.  (Ex. 050 _ 4  PR6068 .O93 ǂb H373 1999). If the call number needs to be adjusted, and there is not a number 4 in the second indicator, then a 090 field should be added, and the call number entered into that field.  If there is more than one LC call number in a 090 field delete all but the one being used in the USU catalog.    

Check that the year of the call number is correct, checking against the publication/copyright year. If a book is an older item, without a year listed in the 050/090, and, if the year of publication/copyright is easily discernible, add the year to the call number. 

Search the online catalog.  Copy and paste the call number into Sierra to search and check for accuracy and to avoid duplication.  If the 050/090 duplicates another call number in Sierra, edit the cutter number to make it unique.  Try to leave room for future numbers to fit in the catalog easily.  Also check to make sure that the call number looks like it belongs on the shelf.  Does the number look like it makes sense?  Check, for example, the number of cutter numbers.

When making changes to a DLC assigned call number (050 00), retain the original 050 and put the new call number in a 090. 

• 050 00 M1500.B827 ǂb B54 1985

• 090 M1500.B837 ǂb B54 1985 (adjusted author cutter)