APA (7th ed.) Citation

Sontag, S. (1989). On photography (2. print.). Noonday Press.

Chicago Style (17th ed.) Citation

Sontag, Susan. On Photography. 2. print. New York: Noonday Press, 1989.

MLA (9th ed.) Citation

Sontag, Susan. On Photography. 2. print. Noonday Press, 1989.