Ccm module 14. Linking relationships (Fields 765-787, 580)

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14.1.2 Steps in creating a link.

In order to create a link, first:

Determine that a linking relationship exists

Determine whether there is a record in the online catalog for the related serial

  1. Determine that a linking relationship exists. The following situations indicate or suggest the presence of a linking relationship:


Related titles are in hand.

e.g., several issues of a serial are in hand and it is evident that a major change has occurred on later issues (according to RDA/LC-PCC PS (works)).


Information in the piece in hand indicates a former title or related resource.
e.g., “formerly the Journal of Electron Microscopy” appears after the title or “Also issued in German and French editions” appears on the verso of the title page.


High volume numbering – when a serial is received for the first time with a volume numbering other than volume 1, consider the possibility that the title may have changed.


A catalog search turns up a record that seems to be related to the serial being cataloged, e.g., the serial in hand has the title Computer news and has a designation of volume 3, number 5, May 1992. A record is found online for Computer news & views which has the same publisher and begins with volume 1 in 1990.


The corporate body has been used as an authorized access point representing the work or expression (RDA or as an addition to an authorized access point representing a work (RDA
e.g., the name authority record for a university indicates that the name changed in 2007 and the serial in hand is no. 5, 2009. It is likely that earlier numbers were issued by the university under its earlier name.


The scope and subject of the serial indicates that it has probably been in existence for some time.

e.g., the 2011 Annual report of AT&T is received and a record cannot be found but it seems fairly certain that such a publication must have been issued for some time. Perhaps the title has changed.


An unexpected combination of language and country of publication implies it might be a translation or a language edition.

e.g., a serial in English is published in a non-English speaking country. Is this a translation of the original or are there multiple language editions published simultaneously? The scope and subject of the serial indicates that it has probably been in existence for some time.

b. Determine whether or not there is a record for the related resource. Locating the related record is important because:

The authorized access point in the record representing the related work or expression will be given in the link (RDA 24.4.2)

Identifiers for the related work, expression, or manifestation will be given in the link (RDA 24.4.1)

CONSER participants will add or update a corresponding link in the record for the related resource (e.g., if the related serial is an earlier title, field 785 for the related serial is added to the record)

A link may be made when a record is not found but the authorized access point can be determined.

14.1.3 What linking entry fields do and don’t do.

a. Links generate structured descriptions of the related resources (RDA 24.4.3). On output, links may be used to describe the nature of the relationship to the resource being linked to, such as Continues: [title], Continued by: [title], or Supplement to: [title]. The introductory words in these cases are generated by using the appropriate tag (fields 765-777) or second indicator value (fields 780 and 785) or by the $i relationship information subfield.4
For example, the field 780 00 $t Open laboratory $x 2168-0310 ... generates a note such as shown in bold below.

The Best science writing online.

New York, NY : Scientific American / Farrar, Straus

and Giroux, 2012-

Continues: Open laboratory (ISSN: 2168-0310)



780 X5

Absorbed by

785 X4

Absorbed in part

780 X6

Absorbed in part by

785 X5

Companion to

787 1X


787 1X

Constituent unit of

774 XX

Continued by

785 X0

Continued in part by

785 X1


780 X0

Continues in part

780 X1


787 XX

Data source

786 XX

Edition of

775 XX

Formed by the union of: ... and: ...

780 X4 (multiple fields)

Has subseries

760/762 (used only by US ISSN Center)

Has supplement

770 XX (parent entry)

Host item/In

773 XX

Index to

787 XX

Issued in or with

777 XX

Merged with:... to form:...

785 X7 (multiple fields)

Merger of: ... and: ...

780 X4 (multiple fields)

Other physical format

776 XX

Separated from

780 X7

Split into:... and: ...

785 X6 (multiple fields)

Subseries of/Main series

760 (used only by US ISSN Center)

Superceded by

785 X26

Superceded in part by

785 X3


780 X2

Supercedes in part

780 X3

Supplement to


Translated as

767 XX

Translation of

765 XX

b. Links connect related records in the catalog. For example, the link in the record for the later title, Biology of Extracellular Matrix, to the earlier title, International Review of Connective Tissue Research, allows the user to retrieve the record for the earlier title. Links may in effect be “super notes,”7 allowing a user to retrieve all of the related records in an online search, e.g., the search of the later title may retrieve both the record for this title and the record for the earlier title.

Record 1:



$a Biology of extracellular matrix



$t International review of connective tissue research $x 0074-767X

Record 2:



$a International review of connective tissue research



$t Biology of extracellular matrix $x 0887-3224

c. While they may perform a similar function of bringing related records together, linking entry fields are not intended to provide additional authorized access points for the resource being described. If an additional access point is desired for the catalog it may be input in another field (730, 700, 710, or 711) (see also Module 7).

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