Cita APA (7a ed.)

Crawley, M. J. (1992). Natural enemies: The population biology of predators, parasites and diseases. Blackwell Scientific Publications.

Cita Chicago Style (17a ed.)

Crawley, Michael J. Natural Enemies: The Population Biology of Predators, Parasites and Diseases. Oxford: Blackwell Scientific Publications, 1992.

Cita MLA (9a ed.)

Crawley, Michael J. Natural Enemies: The Population Biology of Predators, Parasites and Diseases. Blackwell Scientific Publications, 1992.