APA引文

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

Trích dẫn kiểu Chicago

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

MLA引文

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

警告：这些引文格式不一定是100％准确.