United States. Library of Congress & Library of Congress. Cataloging Policy and Support Office. (2007). Library of Congress classification. D-DR. History (general). History of Europe (2007 ed.). Library of Congress, Cataloging Distribution Service.
Citação norma ChicagoUnited States. Library of Congress and Library of Congress. Cataloging Policy and Support Office. Library of Congress Classification. D-DR. History (general). History of Europe. 2007 ed. Washington, D.C: Library of Congress, Cataloging Distribution Service, 2007.
Citação norma MLAUnited States. Library of Congress and Library of Congress. Cataloging Policy and Support Office. Library of Congress Classification. D-DR. History (general). History of Europe. 2007 ed. Library of Congress, Cataloging Distribution Service, 2007.