Palmer , . N. D., & By Perkins , H. C. (1953). International relations: The World community in transition. Houghton Mifflin.
Cita Chicago (17th ed.)Palmer , Norman D., i Howard C. By Perkins. International Relations: The World Community in Transition. London: Houghton Mifflin, 1953.
Cita MLA (9th ed.)Palmer , Norman D., i Howard C. By Perkins. International Relations: The World Community in Transition. Houghton Mifflin, 1953.
Atenció: Aquestes cites poden no estar 100% correctes.