Cita APA (7a ed.)

Gunn, T., & Gunn, A. (1973). Positives: Verses by Thom Gunn. Photographs by Ander Gunn. Faber and Faber.

Cita Chicago Style (17a ed.)

Gunn, Thom, y Ander Gunn. Positives: Verses by Thom Gunn. Photographs by Ander Gunn. London: Faber and Faber, 1973.

Cita MLA (8a ed.)

Gunn, Thom, y Ander Gunn. Positives: Verses by Thom Gunn. Photographs by Ander Gunn. Faber and Faber, 1973.