APA (7th ed.) Citation

Davis, K. F., & Van Vechten, C. (1993). The passionate observer: Photographs by Carl Van Vechten. Hallmark Cards.

Chicago Style (17th ed.) Citation

Davis, Keith F., and Carl Van Vechten. The Passionate Observer: Photographs by Carl Van Vechten. Kansas City, Mo.: Hallmark Cards, 1993.

MLA (9th ed.) Citation

Davis, Keith F., and Carl Van Vechten. The Passionate Observer: Photographs by Carl Van Vechten. Hallmark Cards, 1993.