Cita APA

Douglas, W. O. (1950). Of men and mountains. New York: Happer and Brothers Publishers.

Citación estilo Chicago

Douglas, William O. Of Men and Mountains. New York: Happer and Brothers Publishers, 1950.

Cita MLA

Douglas, William O. Of Men and Mountains. New York: Happer and Brothers Publishers, 1950.

Precaución: Estas citas no son 100% exactas.