Graphis photo 89; the international annual of photography.

MLA

Herdeg, W, and B.M Pedersen. Graphis Photo 89; the International Annual of Photography. Zürich: Graphis Press, 1989.

APA

Herdeg, W., & Pedersen, B. (1989). Graphis photo 89; the international annual of photography. Zürich: Graphis Press.

Chicago

Herdeg, W., and B.M Pedersen. Graphis Photo 89; the International Annual of Photography. Zürich: Graphis Press, 1989.