Guidelines for Usage: 644 Series Analysis Practice

NACO LSP Usage:

In a single 644 field, a subfield $5 containing the NUC symbol for the Library of Congress (DLC) precedes a subfield $5 containing the NUC symbol for an LSP participant. Only the NACO LSP participant creating a Series Authority Record may record its series analysis practice in field 644, or add its NUC symbol to the field 644 containing the series analysis practice for the Library of Congress.

When a pair of 644 fields are appropriate because an LSP participant's analysis practice differs from that of the Library of Congress, the 644 field representing the Library of Congress practice precedes that of the LSP participant.

Inclusion of the field 644 relating to the NACO LSP participant is optional unless the participant is also contributing a bibliographic record related to the series. When field 644 is used, it must contain a subfield $5 to identify the user of the analysis practice.

LC Usage:

LC generally does not analyze issues of serials. If an issue is ever analyzed (because it is a special issue, etc.) code n is still used in subfield $a. The volume which was analyzed is noted in a subfield $b as an exception (e.g.: $an$bexcept vol. 4, no.3).

For more information on LC Guidelines, select:

Guidelines for Usage: NACO/LSP and LC

To return:

Use the key.