APA (7th ed.) Citation

Beeson, P. B., Castle, W. B., & Amberson, J. B. (1950). The 1950 year book of medicine May, 1949 - May, 1950. Year Book Medical Publishers.

Chicago Style (17th ed.) Citation

Beeson, Paul B., William B. Castle, and J. Burns Amberson. The 1950 Year Book of Medicine May, 1949 - May, 1950. Chicago: Year Book Medical Publishers, 1950.

MLA (8th ed.) Citation

Beeson, Paul B., et al. The 1950 Year Book of Medicine May, 1949 - May, 1950. Year Book Medical Publishers, 1950.