655 INDEX TERM--GENRE/FORM/PHYSICAL CHARACTERISTICS (R)
Indicators First Type of heading ^ Basic 0 Faceted 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 Genre/form data or focus term (NR) $b Non-focus term (R) $c Facet/hierarchy designation (R) $v Form subdivision (R) $x General subdivision (R) $y Chronological subdivision (R) $z Geographic subdivision (R) $2 Source of term (NR) $3 Materials specified (NR) $5 Institution to which field applies (NR) $6 Linkage (NR) $8 Field link and sequence number (R)