Cita APA

De la Torre, J., Art Wolfe, & Peterson, R. T. (1990). Owls: Their life and behavior. New York: Crown.

Citación estilo Chicago

De la Torre, Julio, Art Wolfe, y Roger Tory Peterson. Owls: Their Life and Behavior. New York: Crown, 1990.

Cita MLA

De la Torre, Julio, Art Wolfe, y Roger Tory Peterson. Owls: Their Life and Behavior. New York: Crown, 1990.