APA (7th ed.) Citation

United States. Bureau of Agricultural Economics. (1931). World hog and pork prospects. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Agricultural Economics. World Hog and Pork Prospects. [Washington]: [publisher not identified], 1931.

MLA (9th ed.) Citation

United States. Bureau of Agricultural Economics. World Hog and Pork Prospects. [publisher not identified], 1931.

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