APA-Zitierstil (7. Ausg.)

(1966). A directory of information resources in the United States. Library of Congress.

Chicago-Zitierstil (17. Ausg.)

A Directory of Information Resources in the United States. Washington: Library of Congress, 1966.

MLA-Zitierstil (9. Ausg.)

A Directory of Information Resources in the United States. Library of Congress, 1966.