Citazione Stile APA (7a Edizione)

Cooper, K. (1942). Barriers down. Farrar and Rinehart.

Citazione stile Chigago Style (17a edizione)

Cooper, Kent. Barriers Down. New York: Farrar and Rinehart, 1942.

Citatione MLA (9a ed.)

Cooper, Kent. Barriers Down. Farrar and Rinehart, 1942.