The Cross-Reference tab displays when viewing an unestablished heading in a 4xx field. A statement at the top of this tab like the following displays.
Sailor's songs is a cross-reference for the following heading.
The following cross-reference information displays on this tab.
| • | Authority ID |
| • | Authority Term |
The authority ID can be automatically generated, but is always a required field. The authority ID can be any unique string of up to 16 characters.
The authoritative or proper term in the authority record for this cross-reference.