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MARC 21 field 006Fields 001-006 contain control numbers and other control and coded information that are used in processing MARC bibliographic records. Each control field is identified by a field tag in the Directory and contains either a single data element or a series of fixed-length data elements identified by relative character position. Variable control fields contain neither indicator positions nor subfield codes.
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This field contains 18 character positions (00-17) that provide for coding
information about special aspects of the item being cataloged that cannot
be coded in field 008 (Fixed-Length Data Elements). It is used in cases
when an item has multiple characteristics. It is also used to record the
coded serial aspects of nontextual serials.
The field has a tree structure, whereby the code given in 006/00 (Form
of material) determines the data elements defined for subsequent character
positions. Except for code s (Serial), the codes in field 006/00 correspond
to those in Leader/06 (Type of record). For each occurrence of field 006,
the codes defined for character positions 01-17 will be the same as those
defined in the corresponding field 008, character positions 18-34. Configurations
of field 006 are given in the following order: books, computer file, map,
music, serials, visual material, and mixed material.
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| Rev: August 19, 2004 |
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