Cita APA

Alexander, G. 1., & Alexander, G. 1. (1959). General zoology (4. edition.). New York, New York: Barnes and Noble.

Citación estilo Chicago

Alexander, Gordon 1901-, y Gordon 1901- Alexander. General Zoology. 4. edition. New York, New York: Barnes and Noble, 1959.

Cita MLA

Alexander, Gordon 1901-, y Gordon 1901- Alexander. General Zoology. 4. edition. New York, New York: Barnes and Noble, 1959.