Παραπομπή APA

Gaunt, L., & Petzold, P. (1968). Pictorial cyclopedia of photography.

Παραπομπή Chicago Style

Gaunt, Leonardand, και Paul Petzold. Pictorial Cyclopedia of Photography. 1968.

Παραπομπή MLA

Gaunt, Leonardand, και Paul Petzold. Pictorial Cyclopedia of Photography. 1968.