APA (7th ed.) Citation

Ridney, F., & Sorsby, A. (1940). Modern trends in ophthalmology. Hoeber.

Chicago Style (17th ed.) Citation

Ridney, Frederick, and Arnold Sorsby. Modern Trends in Ophthalmology. New York: Hoeber, 1940.

MLA (9th ed.) Citation

Ridney, Frederick, and Arnold Sorsby. Modern Trends in Ophthalmology. Hoeber, 1940.

Warning: These citations may not always be 100% accurate.