042 AUTHENTICATION CODE (NR)
Indicators - Both undefined; each contains a blank (#)
Subfield Code $a Authentication code (R)
dc Dublic 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 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 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