APA (7th ed.) Citation

Simmons, R. E. (2000). Harriers of the world: Their behaviour and ecology. Oxford University Press.

Chicago Style (17th ed.) Citation

Simmons, Robert E. Harriers of the World: Their Behaviour and Ecology. Oxford ; New York: Oxford University Press, 2000.

MLA (9th ed.) Citation

Simmons, Robert E. Harriers of the World: Their Behaviour and Ecology. Oxford University Press, 2000.