Cita APA

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

Chicago Style Citation

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.

Atenció: Aquestes cites poden no estar 100% correctes.