Citação norma APA

Johnson, C. (2007). The practical zone system : for film and digital photography: A simple guide to photographic control (4th ed.). Elsevier/Focal Press.

Citação norma Chicago

Johnson, Chris. The Practical Zone System : For Film and Digital Photography: A Simple Guide to Photographic Control. 4th ed. Boston: Elsevier/Focal Press, 2007.

Citação norma MLA

Johnson, Chris. The Practical Zone System : For Film and Digital Photography: A Simple Guide to Photographic Control. 4th ed. Elsevier/Focal Press, 2007.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.