Citazione Stile APA (7a Edizione)

Palmer , . N. D., & By Perkins , H. C. (1953). International relations: The World community in transition. Houghton Mifflin.

Citazione stile Chigago Style (17a edizione)

Palmer , Norman D., e Howard C. By Perkins. International Relations: The World Community in Transition. London: Houghton Mifflin, 1953.

Citatione MLA (9a ed.)

Palmer , Norman D., e Howard C. By Perkins. International Relations: The World Community in Transition. Houghton Mifflin, 1953.