APA

United States, . (1990). Inactive or discontinued items from the 1950 revision of the classified list. Washington: Government Printing Office, Superintendent of Documents.

Chicago

United States, . 1990. Inactive or discontinued items from the 1950 revision of the classified list. Washington: Government Printing Office, Superintendent of Documents.

Harvard

United States, . (1990). Inactive or discontinued items from the 1950 revision of the classified list. Washington: Government Printing Office, Superintendent of Documents.

MLA

United States, . Inactive or discontinued items from the 1950 revision of the classified list. Washington: Government Printing Office, Superintendent of Documents. 1990.