Cita APA

Toweill, D. E., & Ward Thomas, J. (1982). Elk of North America: Ecology and management. Washington, D. C.: Stackpole.

Citación estilo Chicago

Toweill, Dale E., y Jack Ward Thomas. Elk of North America: Ecology and Management. Washington, D. C.: Stackpole, 1982.

Cita MLA

Toweill, Dale E., y Jack Ward Thomas. Elk of North America: Ecology and Management. Washington, D. C.: Stackpole, 1982.