See Policy Statement 25.0 for information about authorized access points for series.

CORE ELEMENT FOR LC/PCC

Related expression is a core element for LC/PCC for compilations: give a MARC 505 contents note unless the contents are indicated in another part of the description (e.g., in MARC 245 $a because no collective title is present). There is no limit on the number of expressions in the contents note unless burdensome.

When the original expression and one translation are in a compilation, give an analytical authorized access point for each expression. If the compilation contains the original expression and more than one translation, give analytical authorized access points for the original expression and at least one translation. Follow the same policy for language editions in a compilation. See Policy Statement 6.27.3.

See Policy Statement 6.30.3.2 for compilations of multiple expressions of the Bible or its parts.

For other compilations of expressions, give an analytical authorized access point for the predominant or first expression in the compilation when it represents a substantial part of the resource. Disregard contributions such as a preface or introductory chapter. Generally, do not apply this core element to anthologies of poetry, hymnals, conference proceedings, journals, collections of interviews or letters, and similar resources.

Related expression is also a core element for most serial relationships, such as "Continuation of," "Continued by", etc.  Prefer using MARC 7XX subfield $i or specifically-defined MARC tags (e.g., MARC field 785 for "Continued by") rather than MARC 5XX fields for recording relationships to related expressions.  Relationships that would be coded in MARC fields 773, 774, or 787 are not required. Give reciprocal relationships when appropriate.