The Editorial Board of The Focal Encyclopedia, Mannheim, L., & Purves, F. (1965). The Focal encyclopedia of photography (Fully revised edition.). Focal Press.
Chicago Style (17th ed.) CitationThe Editorial Board of The Focal Encyclopedia, L.A Mannheim, and Frederick Purves. The Focal Encyclopedia of Photography. Fully revised edition. London: Focal Press, 1965.
MLA (9th ed.) CitationThe Editorial Board of The Focal Encyclopedia, et al. The Focal Encyclopedia of Photography. Fully revised edition. Focal Press, 1965.
Warning: These citations may not always be 100% accurate.