APA (7th ed.) Citation

CW, B. (1931). Galen. Annals of medical history, 3(2), 209.

Chicago Style (17th ed.) Citation

CW, Burr. "Galen." Annals of Medical History 3, no. 2 (1931): 209.

MLA (9th ed.) Citation

CW, Burr. "Galen." Annals of Medical History, vol. 3, no. 2, 1931, p. 209.