500 GENERAL NOTE (R)
Indicators - Both undefined; each contains a blank (^)
Subfield Codes $a General note (NR) $l Library of Congress call number (SE) [OBSOLETE] $x International Standard Serial Number (SE) [OBSOLETE] $z Source of note information (AM SE) [OBSOLETE] $3 Materials specified (NR) $5 Institution to which field applies (NR) $6 Linkage (NR) $8 Field link and sequence number (R)