APA (7th ed.) Citation

Schwarz, H., & Fraenkel, H. E. (1931). David Octavius Hill: Master of photography. The Viking Press.

Chicago Style (17th ed.) Citation

Schwarz, Heinrich, and Helene E. Fraenkel. David Octavius Hill: Master of Photography. New York: The Viking Press, 1931.

MLA (9th ed.) Citation

Schwarz, Heinrich, and Helene E. Fraenkel. David Octavius Hill: Master of Photography. The Viking Press, 1931.