APA (7th ed.) Citation

Graves, C. (1982). The zone system for 35mm photographers: A basic guide to exposure control. Focal Press.

Chicago Style (17th ed.) Citation

Graves, Carson. The Zone System for 35mm Photographers: A Basic Guide to Exposure Control. Boston: Focal Press, 1982.

MLA (9th ed.) Citation

Graves, Carson. The Zone System for 35mm Photographers: A Basic Guide to Exposure Control. Focal Press, 1982.