086 GOVERNMENT DOCUMENT CALL NUMBER (R)Indicators First Number source ^ Number specified in subfield $2 0 Superintendent of Documents Classification System 1 Government of Canada Publications: Outline of Classification Second Undefined; contains a blank (^)Subfield Codes $a Call number (NR) $d Volumes/dates to which call number applies (NR) $z Cancelled/invalid call number (R) $2 Number source (NR) $5 Institution to which field applies (R) $6 Linkage (NR) $8 Field link and sequence number (R)