Cita APA

Estados Unidos Library of Congress Network Development and MARC Standards Office, National Library of Canada. Standards and Support, & National Library of Canada. Standards and Support. (1999). MARC 21 format for authority data: Including guidelines for content designation (1999 edition.). Washington: Library of Congress, Cataloging Distribution Service.

Citación estilo Chicago

Estados Unidos Library of Congress Network Development and MARC Standards Office, National Library of Canada. Standards and Support, y National Library of Canada. Standards and Support. MARC 21 Format for Authority Data: Including Guidelines for Content Designation. 1999 edition. Washington: Library of Congress, Cataloging Distribution Service, 1999.

Cita MLA

Estados Unidos Library of Congress Network Development and MARC Standards Office, National Library of Canada. Standards and Support, y National Library of Canada. Standards and Support. MARC 21 Format for Authority Data: Including Guidelines for Content Designation. 1999 edition. Washington: Library of Congress, Cataloging Distribution Service, 1999.