APA (7th ed.) Citation

Parks, G. R. (1948). Camera portraits: The techniques and principles of documentary portraiture. F. Watts.

Chicago Style (17th ed.) Citation

Parks, Gordon Roger. Camera Portraits: The Techniques and Principles of Documentary Portraiture. New York: F. Watts, 1948.

MLA (9th ed.) Citation

Parks, Gordon Roger. Camera Portraits: The Techniques and Principles of Documentary Portraiture. F. Watts, 1948.