| First Indicator | Second Indicator |
|---|---|
| Type of meeting name entry element 0 - Inverted name 1 - Jurisdiction name 2 - Name in direct order |
Thesaurus 0 - Library of Congress Subject Headings 1 - LC subject headings for children's literature 2 - Medical Subject Headings 3 - National Agricultural Library subject authority file 4 - Source not specified 5 - Canadian Subject Headings 6 - Répertoire de vedettes-matière 7 - Source specified in subfield $2 |
| Subfield Codes | |
|---|---|
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Meeting or conference name used as a subject added entry.
Subject added entries are assigned to a community information record to provide access according to established subject cataloging principles and guidelines. Field 611 may be used by any institution assigning subject headings based on the lists and authority files identified in the second indicator position or in subfield $2 (Source of heading or term).
Description of the first indicator position and all subfield codes, as well as input conventions for the 611 field are given in the X11 Meeting Names-General Information section. Because the second indicator is different for various fields, it is not described in the general information section, but is described below.
Second Indicator - Thesaurus
Name and/or subject heading system or thesaurus used in constructing the subject heading.
Subject added entry conforms to and is appropriate for use in the Library of Congress Subject Headings (LCSH) and the Name authority files. LCSH is maintained by the Library of Congress. Conforms to LCSH is defined as:
Subject added entry conforms to the "AC Subject Headings" section of Library of Congress Subject Headings that is maintained by the Library of Congress and is appropriate for use in the LC Annotated Card Program.
Subject added entry conforms to and is appropriate for use in the National Library of Medicine authority files.
Subject added entry conforms to and is appropriate for use in the U.S. National Agricultural Library subject authority file.
Subject added entry conforms to a controlled list but the source cannot be specified by one of the subject heading system/thesauri covered by second indicator values 0-3, 5-6 or by a code for a specific subject heading list in subfield $2. Field 653 (Index Term-Uncontrolled) is used to record terms that are not derived from controlled subject heading lists.
Subject added entry conforms to and is appropriate for use in the Canadian Subject Headings and the NLC authority files that are maintained by the Library and Archives Canada.
Subject added entry conforms to and is appropriate for use in the Répertoire de vedettes-matière that is maintained by the Bibliothèque de l'Université Laval.
Subject added entry conforms to a set of subject heading system/thesaurus building rules other than that specified by one of the other defined values and for which identifying codes are given in subfield $2. The codes to be used are given in Subject Heading and Term Source Codes.