Field 580 is used to express complex relationships that cannot be accurately generated by using the display constants associated with the linking entry fields (765-787). It is also used for regular-print reprints to provide details of the original. Notes for relationships involving the 776 field (Additional physical form entry) are recorded in field 530. (CEG5xxp54)
When optional date information is provided with a continued by or "absorbed by" note.
580 ## Continued in 1982 by: U.S. exports. Schedule E commodity groupings by world area and country.
785 1# $t U.S. exports. Schedule E commodity groupings by world area and country $w (DLC) 84641135
When more than one entry is mentioned in a specific linking entry relationship note, such as Split into: … and: …, or Merged with: … to form: …
580 ## Merged with: Index chemicus (Philadelphia, Pa. : 1977), to form: Current abstracts of chemistry and index chemicus (Philadelphia, Pa. : 1978)
785 17 $t Index chemicus (Philadelphia, Pa. : 1977) $x 0160-1482 $w (DLC) 83642297
When a serial is issued in more than one frequency and two or more records are required, relate one frequency edition to another using a 580 note.
245 00 Bell & Howell newspaper index to the New Orleans times-picayune, the states- item.
580 ## Issued also in an annual cumulation.
775 1# $t Bell & Howell newspaper index to the New Orleans times-picayune, the states- item (Annual) $x 0273-4788 $w (OCoLC)8965879 $w (DLC) 82647032
For notes pertaining to a regular-print republication to provide details of the original publication. [Linking field not required].
580 ## Originally published weekly: Cincinnati, Ohio : Giglampz Co.
When the serial bore a relationship to a monograph, including special format publications. (An added entry is sometimes provided but not required.)
580 ## Companion to: The play book, v. 1.