APA (7th ed.) Citation

Sigerist, H. E. (1951). A History of Medecine. I. Primitive and Archaic Medicine.

Chicago Style (17th ed.) Citation

Sigerist, Henry Ernest. A History of Medecine. I. Primitive and Archaic Medicine. New York, 1951.

MLA (8th ed.) Citation

Sigerist, Henry Ernest. A History of Medecine. I. Primitive and Archaic Medicine. 1951.