APA (7th ed.) Citation

Villard, O. G. (1943). John Brown, 1800-1859: A biography fifty years after. A.A. Knopf.

Chicago Style (17th ed.) Citation

Villard, Oswald Garrison. John Brown, 1800-1859: A Biography Fifty Years After. New York: A.A. Knopf, 1943.

MLA (9th ed.) Citation

Villard, Oswald Garrison. John Brown, 1800-1859: A Biography Fifty Years After. A.A. Knopf, 1943.