Gaya APA

Swanson, C, P., Mannheim, L. (1970). Photography teory and practice 2 The camera and its functions . London: London: Focal Press; 1970.

Gaya MLA

Swanson, Carl, P.., Mannheim, LA. "Photography teory and practice 2 The camera and its functions". London: London: Focal Press; 1970, 1970. Text.