APA (7th ed.) Citation

Olcott, C. S. (1916). The life of William McKinley. Houghton, Mifflin.

Chicago Style (17th ed.) Citation

Olcott, Charles S. The Life of William McKinley. New York: Houghton, Mifflin, 1916.

MLA (9th ed.) Citation

Olcott, Charles S. The Life of William McKinley. Houghton, Mifflin, 1916.