Authority control principles, applications, and instructions.

Manylion Llyfryddiaeth
Prif Awdur:	Clack, Doris Hargrett
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Chicago American Library Association 1990.
Pynciau:	Authority files (Cataloging). Authority files (cataloging) > Data processing.