APA (7th ed.) Citation

Sontag, S. (1977). On Photography (NA.). Penguin Books.

Chicago Style (17th ed.) Citation

Sontag, Susan. On Photography. NA. USA: Penguin Books, 1977.

MLA (9th ed.) Citation

Sontag, Susan. On Photography. NA. Penguin Books, 1977.

Warning: These citations may not always be 100% accurate.