APA (7th ed.) Citation

United States. Department of Agriculture. (1940). Index to Crops and markets, Vol. 17, 1940. [s.n.].

Chicago Style (17th ed.) Citation

United States. Department of Agriculture. Index to Crops and Markets, Vol. 17, 1940. [Washington]: [s.n.], 1940.

MLA (9th ed.) Citation

United States. Department of Agriculture. Index to Crops and Markets, Vol. 17, 1940. [s.n.], 1940.