APA

Library of Congress, Library of Congress & Library of Congress. (1999). Library of Congress classification: T : Technology. Washington, D.C: Library of Congress, Cataloging Distribution Service.

Chicago

Library of Congress, Library of Congress and Library of Congress. 1999. Library of Congress classification: T : Technology. Washington, D.C: Library of Congress, Cataloging Distribution Service.

Harvard

Library of Congress, Library of Congress and Library of Congress. (1999). Library of Congress classification: T : Technology. Washington, D.C: Library of Congress, Cataloging Distribution Service.

MLA

Library of Congress, Library of Congress and Library of Congress. Library of Congress classification: T : Technology. Washington, D.C: Library of Congress, Cataloging Distribution Service. 1999.