United States. Library of Congress. Policy and Standard Division & Library of Congress. Cataloging Distribution Service. (2010). Free-floating subdivisions: An alphabetical index (22nd ed.). Library of Congress, Cataloging Distribution Service.
Chicago-referens (17:e uppl.)United States. Library of Congress. Policy and Standard Division och Library of Congress. Cataloging Distribution Service. Free-floating Subdivisions: An Alphabetical Index. 22nd ed. Washington, D.C: Library of Congress, Cataloging Distribution Service, 2010.
MLA-referens (9:e uppl.)United States. Library of Congress. Policy and Standard Division och Library of Congress. Cataloging Distribution Service. Free-floating Subdivisions: An Alphabetical Index. 22nd ed. Library of Congress, Cataloging Distribution Service, 2010.