042 AUTHENTICATION CODE (NR)
Indicators - Both undefined; each contains a blank (^)
Subfield Code
$a Authentication code (R)
dc - Dublin Core
dhca - Dance Heritage Coalition Access Project
gamma - Georgia Archives & Manuscripts Automated Access Project
gils - Government Information Location Service
isds/c - ISSN/Canada
lc - Library of Congress
lcac - LC Annotated Children's Cataloging Program
lccopycat - LC copy cataloging
lccopycat-nm - LC copy cataloging-Near Match
lcd - CONSER full authority application
lcderive - LC derived cataloging
lchlas - LC Handbook of Latin American Studies
lcllh - LC Law Library Hispanic
lcnccp - LC National Coordinated Cataloging Program
lcnitrate - LC nitrate film
lcnuc - National Union Catalog
lcode - LC overseas data entry
msc - CONSER minimal authority application
nlc - National Library of Canada
nsdp - National Serial Data Program
nst - New Serial Titles (SE) [OBSOLETE]
ntccf - LC National Translations Center citation file
pcc - Program for Cooperative Cataloging
premarc - LC PreMARC Retrospective Conversion Project
sanb - South African National Bibliography Project
xisds/c - ISSN/Canada does not consider item a serial
xlc - LC does not consider item a serial
xnlc - NLC does not consider item a serial
xnsdp - NSDP does not consider item a serial