Library of Congress. (2009). Understanding MARC bibliographic. Washington, DC: Library of Congress.
Stile di citazione ChicagoLibrary of Congress. Understanding MARC Bibliographic. Washington, DC: Library of Congress, 2009.
Citazione MLALibrary of Congress. Understanding MARC Bibliographic. Washington, DC: Library of Congress, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.