APA (7th ed.) Citation

Thompson, W. S. (1929). Danger spots in world population. Alfred A. Knopf.

Chicago Style (17th ed.) Citation

Thompson, Warren Simpson. Danger Spots in World Population. New York: Alfred A. Knopf, 1929.

MLA (9th ed.) Citation

Thompson, Warren Simpson. Danger Spots in World Population. Alfred A. Knopf, 1929.