Used
in an established heading or established heading and subdivision
record to trace a see from
reference from a topical term not used in an established heading.
Subfield Codes
$a - Topical term
entry element (NR). In UNBIS, the complete topical term is entered in $a.
Example:
150
$a
OFF-ROAD
VEHICLES
497 $a ÂÅÇÄÅÕÎÄÛ
497 $a ÂÍÅÄÎÐÎÆÍÈÊÈ
497 $a ÂÍÅÄÎÐÎÆÍÛÅ ÀÂÒÎÌÎÁÈËÈ
497 $a ÑÏÎÐÒÈÂÍÎ-ÓÒÈËÈÒÀÐÍÛÅ ÀÂÒÎÌÎÁÈËÈ
997 $a ÒÐÀÍÑÏÎÐÒÍÛÅ ÑÐÅÄÑÒÂÀ ÏÎÂÛØÅÍÍÎÉ
ÏÐÎÕÎÄÈÌÎÑÒÈ
Tag 997
is «Heading-Topical Term (Russian)»
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