Optics and focus for camera assistants.

MLA

Hershey, F.L. Optics and Focus for Camera Assistants. Oxford: Focal Press, 1996.

APA

Hershey, F. (1996). Optics and focus for camera assistants. Oxford: Focal Press.

Chicago

Hershey, F.L. Optics and Focus for Camera Assistants. Oxford: Focal Press, 1996.