APA (7th ed.) Citation

Jackson, R., & By Sorensen , G. (2013). Introduction to international relations: Theories and approaches (5th ed.). U.pr..

Chicago Style (17th ed.) Citation

Jackson, Robert, and Georg By Sorensen. Introduction to International Relations: Theories and Approaches. 5th ed. Oxford: U.pr., 2013.

MLA (9th ed.) Citation

Jackson, Robert, and Georg By Sorensen. Introduction to International Relations: Theories and Approaches. 5th ed. U.pr., 2013.