APA (7th ed.) Citation

(2006). Update no. ... to the MARC 21 formats. Cataloging Distribution Service of the Library of Congress.

Chicago Style (17th ed.) Citation

Update No. ... to the MARC 21 Formats. [Washington, District of Columbia]: Cataloging Distribution Service of the Library of Congress, 2006.

MLA (9th ed.) Citation

Update No. ... to the MARC 21 Formats. Cataloging Distribution Service of the Library of Congress, 2006.

Warning: These citations may not always be 100% accurate.