MARC 773 Host Item Entry

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MARC field 773 in the Bibliographic format contains information identifying the target of a vertical relationship, for example, the host volume for a journal article when the article is cataloged separately. Originally intended to allow users to find the published volume that contains the component described in the record, MARC field 773 has come to be used by special collections libraries for copy-specific purposes as well, for example linking record for items in a collection to the parent record for the collection, and linking records for individual items in an extra-illustrated volume to the record for the parent volume.

This field is repeatable.


  • [indicate whether the field is searchable in Hamnet drop-downs, or only in the staff module and Command Line search]

Commonly-used tags

1st indicator – Note controller

0 - Display note
1 - Do not display note

2nd indicator – Display constant controller

# - In
8 - No display constant generated

Subfield delimiters

ǂa - Main entry heading
ǂd - Place, publisher, and date of publication
ǂg - Related parts
ǂh - Physical description
ǂi - Relationship information
ǂn - Note
ǂo - Other item identifier
ǂt - Title
ǂw - Record control number

Policy and formulation

  • Routinely add 773 fields to records for items that contain or are associated with constituent units.

Voyager configuration

  • As of December 5, 2017, Hamnet is set so that links to "Related records" are automatically generated when any of the following is true:
    • the 773$t in the child record matches the 245$a of the parent record
    • the 773$o in the child record matches the Bib ID of the parent record
    • the 774$o in the parent record exactly matches the 773$t of the child record (remember to code the first indicator so that the note does not display)
    • each 774$o of the parent record contains the Voyager bib ID of a child record (remember to code the first indicator so that the note does not display)


External links