520 SUMMARY, ETC. (R)
Indicators
First Display constant controller
^ No information provided
0 Subject
1 Review
2 Scope and content
3 Abstract
4 Content advice
8 No display constant generated
Second Undefined; contains a blank (^)
Subfield Codes
$a Summary, etc. note (NR)
$b Expansion of summary note (NR)
$c Assigning source (NR)
$u Uniform Resource Identifier (R)
$z Source of note information (NR) [OBSOLETE]
$2 Source (NR)
$3 Materials specified (NR)
$6 Linkage (NR)
$8 Field link and sequence number (R)