APA

Library of Congress, . (2000). MARC 21 concise format for holdings data. Washington, D.C: Library of Congress, Network Development and MARC Standars Office.

Chicago

Library of Congress, . 2000. MARC 21 concise format for holdings data. Washington, D.C: Library of Congress, Network Development and MARC Standars Office.

Harvard

Library of Congress, . (2000). MARC 21 concise format for holdings data. Washington, D.C: Library of Congress, Network Development and MARC Standars Office.

MLA

Library of Congress, . MARC 21 concise format for holdings data. Washington, D.C: Library of Congress, Network Development and MARC Standars Office. 2000.