An established topical term or geographic name used in main subject headings in established heading records.
Arabic equivalent of field 150.
Subfield Codes
$a - Topical term or geographic name entry element (NR). In UNBIS, the complete topical or geographic term is entered in $a.
Example:
150 $a OFF-ROAD VEHICLES
995 $a مركبات صالحة للمناطق الوعرة
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