768 Citation and Precedence Order Instructions (R) (Variable Data Field)

Field definition and scope: This field contains a note or table with instructions for determining either the order of the elements in a synthesized classification number or the precedence for the classification of different characteristics of a topic.

Field 768 is repeatable .

Guidelines for applying Content Designators:

Indicators

First Type of instruction

0 Citation and precedence order note

1 Table of precedence

Second Undefined; contains a blank (#)

Subfield Codes

$a Classification number - Single number or beginning number of span (R)

$c Classification number - Ending number of span (R)

$e Example class number (R)

$i Explanatory text (R)

$j Caption (R)

$n Negative example class number (R)

$t Topic used as example of citation and precedence order instruction (R)

$x Exception to table of precedence (R)

$z Table identification - Table number (R)

$8 Link and sequence number (NR)

Conventions: Dewey Decimal Classification (Scheme-Specific)

Related USMARC fields or documents:

683 Application Instruction Note

761 Add or Divide Like Instructions

See also:

76X Numbers Building Fields

Variable Data Fields