262 IMPRINT STATEMENT FOR SOUND RECORDINGS (Pre-AACR 2) [LOCAL] (NR)Indicators - Both undefined; each contains a blank (^) Subfield Codes $a Place of production, release, etc. (NR) $b Publisher or trade name (NR) $c Date of production, release, etc. (NR) $k Serial identification (NR) $l Matrix and/or take number (NR) $6 Linkage (NR)