Cita APA (7th ed.)
The United States Government Printing Office. The United States Department of Agriculture. (1966). Protecting our food. The Superintendent of Documents.
Cita Chicago (17th ed.)
The United States Government Printing Office. The United States Department of Agriculture. Protecting Our Food. Washington: The Superintendent of Documents, 1966.
Cita MLA (9th ed.)
The United States Government Printing Office. The United States Department of Agriculture. Protecting Our Food. The Superintendent of Documents, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.