Cita APA

Gerrard, J. M., & Bortolotti, G. R. (1988). The Bald Eagle: Haunts and habits of a wilderness monarch. Washington, D. C.: Smithsonian Institution.

Citación estilo Chicago

Gerrard, Jon M., y Gary R. Bortolotti. The Bald Eagle: Haunts and Habits of a Wilderness Monarch. Washington, D. C.: Smithsonian Institution, 1988.

Cita MLA

Gerrard, Jon M., y Gary R. Bortolotti. The Bald Eagle: Haunts and Habits of a Wilderness Monarch. Washington, D. C.: Smithsonian Institution, 1988.