788 COMPLEX LINKING ENTRY DATA (NR)
Indicators
First Undefined; contains a blank
Second Thesaurus
0 Library of Congress Subject Headings/LC authority files
1 LC subject headings for children's literature
2 Medical Subject Headings/NLM authority files
3 National Agricultural Library subject authority file
4 Source not specified
5 Canadian Subject Headings/NLC authority file
6 Repertoire des vedettes-matiere/NLC authority file
7 Source specified in subfield $2
Subfield Codes
$a Heading referred to (R)
$i Explanatory text (R)
$u Record control number [OBSOLETE]
$2 Source of heading or term (NR)
$5 Institution to which field applies (NR)
$6 Linkage (NR)