APA (7th ed.) Citation

Clerc, L. P., Mannheim, L. A., & Spencer, D. A. (1970). Photography: Theory and practice (Completely rev. and enl. ed.). Focal Press.

Chicago Style (17th ed.) Citation

Clerc, Louis Philippe, L. A. Mannheim, and D. A. Spencer. Photography: Theory and Practice. Completely rev. and enl. ed. London: Focal Press, 1970.

MLA (9th ed.) Citation

Clerc, Louis Philippe, et al. Photography: Theory and Practice. Completely rev. and enl. ed. Focal Press, 1970.