APA (7th ed.) Citation

Focal Press Ltd. (1960). The Focal encyclopedia of photography. Focal Press.

Chicago Style (17th ed.) Citation

Focal Press Ltd. The Focal Encyclopedia of Photography. London: Focal Press, 1960.

MLA (9th ed.) Citation

Focal Press Ltd. The Focal Encyclopedia of Photography. Focal Press, 1960.

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