APA (7th ed.) Citation

United States. Bureau of Animal Industry & Clawson, A. B. (1931). "Bitterweed" poisoning of livestock. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Animal Industry and A. B. Clawson. "Bitterweed" Poisoning of Livestock. Washington: [publisher not identified], 1931.

MLA (9th ed.) Citation

United States. Bureau of Animal Industry and A. B. Clawson. "Bitterweed" Poisoning of Livestock. [publisher not identified], 1931.