APA (7th ed.) Citation

Walker, L. W. (1930). Economic value of predatory animals. Zoological society of San Diego.

Chicago Style (17th ed.) Citation

Walker, Lewis Wayne. Economic Value of Predatory Animals. San Diego, Cal: Zoological society of San Diego, 1930.

MLA (9th ed.) Citation

Walker, Lewis Wayne. Economic Value of Predatory Animals. Zoological society of San Diego, 1930.

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