APA

Jackson R., Sorensen G., . (2007). Introduction to international relations. Oxford: Oxford University Press.

Chicago

Jackson Robert, Sorensen Georg, . 2007. Introduction to international relations. Oxford: Oxford University Press.

Harvard

Jackson R., Sorensen G., . (2007). Introduction to international relations. Oxford: Oxford University Press.

MLA

Jackson Robert, Sorensen Georg, . Introduction to international relations. Oxford: Oxford University Press. 2007.