APA (7th ed.) Citation

Nicolson, D. W. (1943). Twenty Years of Medical Research: National Tuberculosis Association.

Chicago Style (17th ed.) Citation

Nicolson, D. W. Twenty Years of Medical Research: National Tuberculosis Association. New York, 1943.

MLA (8th ed.) Citation

Nicolson, D. W. Twenty Years of Medical Research: National Tuberculosis Association. 1943.