APA (7th ed.) Citation

Keyes, E. L. (1877). The tonic treatment of syphilis. Appleton.

Chicago Style (17th ed.) Citation

Keyes, E. L. The Tonic Treatment of Syphilis. New York: Appleton, 1877.

MLA (8th ed.) Citation

Keyes, E. L. The Tonic Treatment of Syphilis. Appleton, 1877.