APA (7th ed.) Citation

United States. Bureau of Agricultural Economics. (1937). Hog situation, HS-7. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Agricultural Economics. Hog Situation, HS-7. [Washington]: [s.n.], 1937.

MLA (9th ed.) Citation

United States. Bureau of Agricultural Economics. Hog Situation, HS-7. [s.n.], 1937.

Warning: These citations may not always be 100% accurate.