APA

United States, .Inactive or discontinued items from the 1950 revision of the classified list. Washington, D.C: Superintendent of Documents, U.S. G.P.O.

Chicago

United States, .Inactive or discontinued items from the 1950 revision of the classified list. Washington, D.C: Superintendent of Documents, U.S. G.P.O.

Harvard

United States, .Inactive or discontinued items from the 1950 revision of the classified list. Washington, D.C: Superintendent of Documents, U.S. G.P.O.

MLA

United States, .Washington, D.C: Superintendent of Documents, U.S. G.P.O. .