APA (7th ed.) Citation

Gooders, J., & Boyer, T. (1986). Ducks of North America and the northern hemisphere. Facts on File.

Chicago Style (17th ed.) Citation

Gooders, John, and Trevor Boyer. Ducks of North America and the Northern Hemisphere. New York, N.Y.: Facts on File, 1986.

MLA (9th ed.) Citation

Gooders, John, and Trevor Boyer. Ducks of North America and the Northern Hemisphere. Facts on File, 1986.