APA引文

Library of Congress. (2009). Understanding MARC bibliographic. Washington, DC: Library of Congress.

Trích dẫn kiểu Chicago

Library of Congress. Understanding MARC Bibliographic. Washington, DC: Library of Congress, 2009.

MLA引文

Library of Congress. Understanding MARC Bibliographic. Washington, DC: Library of Congress, 2009.

警告：這些引文格式不一定是100％准確.