APA استشهاد

palmer, N. D., & Perkins, H. C. (1997). International relations: The world community in transition.

استشهاد بنمط شيكاغو

palmer, Norman D., و Howar C. Perkins. International Relations: The World Community in Transition. New Delhi, A I T B S Publishers, 1997.

MLA استشهاد

palmer, Norman D., و Howar C. Perkins. International Relations: The World Community in Transition. 1997.