580 Linking Entry Complexity Note (R) (Variable Data Field)
Field 580 contains a note that expresses a complex relationship between the item described in the record and other items that cannot be adequately generated from the linking entry fields 760-787 .
In some cases the field is used to state a relationship when no corresponding linking entry fields are present, such as for the following:
a regular-print reprint to provide details of the original publication;
a serial bearing a relationship to a monograph, or other non-serial publication;
a serial bearing a relationship to one or more publications which cannot be named;
a serial issued in more than one frequency when two or more records are required.
When used, this field appears in addition to any relevant linking entry fields.
The National level record requirement for this field is Mandatory if applicable.
Field 580 is repeatable .
Guidelines for applying content designators:
For indicator and subfield code definitions and examples, National-level (NLR) and Minimal-level (MLR) record requirements , and designator repeatability , see table below:
Position | Description | NLR | MLR | Repeatability |
Field 580 | Linking Entry Complexity Note | A | O | R |
Indicator: | ||||
First | Undefined; contains a blank | M | ||
Second | Undefined; contains a blank | M | ||
Subfield code: | ||||
M | O | NR | ||
$6 | A | O | NR | |
$8 | O | O | R |
Field 580 originally was defined only in the serials specifications. In 1981, it was validated for the books specifications to accommodate technical report materials cataloging. When the record-linking technique was developed in 1982, field 580 was validated in all other MARC specifications
.
Subfield $z - Source of note information [obsolete]: Subfield $z was made obsolete in 1990. Source information is included as part of the linking entry complexity note in subfield $a.
Related MARC fields or documents:
880 Alternate Graphic Representation
See also:
