APA Citation

Wallace, W. K. (1922). The trend of history: Origins of twentieth century problems. New York: Macmillan Co..

Chicago Style Citation

Wallace, William Kay. The Trend of History: Origins of Twentieth Century Problems. New York: Macmillan Co., 1922.

MLA Citation

Wallace, William Kay. The Trend of History: Origins of Twentieth Century Problems. New York: Macmillan Co., 1922.

Warning: These citations may not always be 100% accurate.