Cita APA

Angell, T. (1979). Owls (2a. ed.). Washington, D. C.: University of Washington.

Citación estilo Chicago

Angell, Tony. Owls. 2a. ed. Washington, D. C.: University of Washington, 1979.

Cita MLA

Angell, Tony. Owls. 2a. ed. Washington, D. C.: University of Washington, 1979.