APA (7th ed.) Citation

Croy, O. R. (1968). The photographic portrait. Chilton Book Co..

Chicago Style (17th ed.) Citation

Croy, Otto R. The Photographic Portrait. Philadelphia: Chilton Book Co., 1968.

MLA (9th ed.) Citation

Croy, Otto R. The Photographic Portrait. Chilton Book Co., 1968.