APA (7th ed.) Citation

United States. Bureau of Animal Industry. (1938). Comparative value of mature sows and gilts for producing market hogs. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Animal Industry. Comparative Value of Mature Sows and Gilts for Producing Market Hogs. [Washington]: [s.n.], 1938.

MLA (9th ed.) Citation

United States. Bureau of Animal Industry. Comparative Value of Mature Sows and Gilts for Producing Market Hogs. [s.n.], 1938.