651 SUBJECT ADDED ENTRY--GEOGRAPHIC NAME (R)
Indicators First Undefined; contains a blank (^) Second 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 Repertoire de vedettes-matiere 7 Source specified in subfield $2
Subfield Codes $a Geographic name (NR) $b Geographic name following place entry element (R) [OBSOLETE] $v Form subdivision (R) $x General subdivision (R) $y Chronological subdivision (R) $z Geographic subdivision (R) $2 Source of heading or term (NR) $3 Materials specified (NR) $6 Linkage (NR) $8 Field link and sequence number (R)