NACO Participants' Manual -3rd Edition - Library of Congress

Earlier/Later ReferencesI. Earlier/later references are special types of "see also" (5XX) cross-references. They areused to record a sequential relationship between corporate headings.II. Earlier/later references are normally made only to connect immediately adjacent headings,thus creating a chain of "see also" references leading from one heading to another.III. Full information about earlier/later references may be found in the LCRI 26.3B-C, alongwith several pages of examples. Please refer to that section for a more completeexplanation of earlier/later references.IV. All headings connected by these references must be represented by an NAR in theLC/NAF. All headings and references must be in correct AACR form. Establish anyheading not yet in the LC/NAF, including those for which there are no bibliographicrecords.V. In source citations (670 or 675), generally cite only sources that deal with the immediatelypreceding and succeeding headings.VI. Always give the citation for the item being cataloged in a 670 field. Give other sourcecitations as necessary.VII. If a source gives only a name not used in the heading or 4XX, cite the source in the 675field.VIII. Justification of preceding and succeeding headings is not required for: (1) changes in agovernment heading because of an official language change; (2) changes involving onlya parent body to which the body being established is subordinate.34