Cita APA

McFarland, W. N., & McFarland, W. N. (1979). Vertebrate life. New York, New York: Macmillan.

Citación estilo Chicago

McFarland, William N., y William N. McFarland. Vertebrate Life. New York, New York: Macmillan, 1979.

Cita MLA

McFarland, William N., y William N. McFarland. Vertebrate Life. New York, New York: Macmillan, 1979.