4th edition; handbook for contemporary photography

MLA

Gassan, A. 4th Edition; Handbook for Contemporary Photography. New York: Light impressions, 1977.

APA

Gassan, A. (1977). 4th edition; handbook for contemporary photography. New York: Light impressions.

Chicago

Gassan, A. 4th Edition; Handbook for Contemporary Photography. New York: Light impressions, 1977.