APA

Library of Congress, Library of Congress, Library of Congress & Library of Congress. (2007). Free-floating subdivisions: an alphabetical index. Washington, D.C: Library of Congress, Cataloging Distribution Service.

Chicago

Library of Congress, Library of Congress, Library of Congress and Library of Congress. 2007. Free-floating subdivisions: an alphabetical index. Washington, D.C: Library of Congress, Cataloging Distribution Service.

Harvard

Library of Congress, Library of Congress, Library of Congress and Library of Congress. (2007). Free-floating subdivisions: an alphabetical index. Washington, D.C: Library of Congress, Cataloging Distribution Service.

MLA

Library of Congress, Library of Congress, Library of Congress and Library of Congress. Free-floating subdivisions: an alphabetical index. Washington, D.C: Library of Congress, Cataloging Distribution Service. 2007.