Library of Congress. (2009). Understanding MARC bibliographic. Washington, DC: Library of Congress.
Chicago Style citaatLibrary of Congress. Understanding MARC Bibliographic. Washington, DC: Library of Congress, 2009.
MLA citatieLibrary of Congress. Understanding MARC Bibliographic. Washington, DC: Library of Congress, 2009.
Let op: Deze citaties zijn niet altijd 100% accuraat.