APA

Jackson Robert, Sorensen Georg, . (2014). Introduction to international relations : Theories and approaches. London: Oxford University Press.

Chicago

Jackson Robert, Sorensen Georg, . 2014. Introduction to international relations : Theories and approaches. London: Oxford University Press.

Harvard

Jackson Robert, Sorensen Georg, . (2014). Introduction to international relations : Theories and approaches. London: Oxford University Press.

MLA

Jackson Robert, Sorensen Georg, . Introduction to international relations : Theories and approaches. London: Oxford University Press. 2014.