APA (7th ed.) Citation

MC, H. (1921). Arthritis, A Group Study of 300 Cases. California state journal of medicine, 19(1), 26.

Chicago Style (17th ed.) Citation

MC, Harding. "Arthritis, A Group Study of 300 Cases." California State Journal of Medicine 19, no. 1 (1921): 26.

MLA (9th ed.) Citation

MC, Harding. "Arthritis, A Group Study of 300 Cases." California State Journal of Medicine, vol. 19, no. 1, 1921, p. 26.