866 TEXTUAL HOLDINGS--BASIC BIBLIOGRAPHIC UNIT (R)
Indicators First Field encoding level ^ No information provided 3 Holdings level 3 4 Holdings level 4 5 Holdings level 4 with piece designation Second Type of notation 0 Non-standard 1 ANSI/NISO Z39.71 or ISO 10324 2 ANSI Z39.42
Subfield Codes $a Textual string (NR) $x Nonpublic note (R) $z Public note (R) $6 Linkage (NR) $8 Link and sequence number (R)