Cita APA

Vernberg. F. John, 1., & Vernberg, W. B. (1970). The animal and the environment. New York: Holt Rinehart and Winston.

Citación estilo Chicago

Vernberg. F. John, 1925, y Winona B. Vernberg. The Animal and the Environment. New York: Holt Rinehart and Winston, 1970.

Cita MLA

Vernberg. F. John, 1925, y Winona B. Vernberg. The Animal and the Environment. New York: Holt Rinehart and Winston, 1970.