Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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