Citazione Stile APA (7a Edizione)

Abel, J. C. (1940). Portrait photography as a career. Chapman and Hall Ltd..

Citazione stile Chigago Style (17a edizione)

Abel, Juan C. Portrait Photography as a Career. London: Chapman and Hall Ltd., 1940.

Citatione MLA (9a ed.)

Abel, Juan C. Portrait Photography as a Career. Chapman and Hall Ltd., 1940.