MLA

Evans, Graham, and Jeffrey Newnham. The Penguin Dictionary of International Relations. London: Penguin Books, 1998.

APA

Evans, G., & Newnham, J. (1998). The Penguin dictionary of international relations. London: Penguin Books.

Chicago

Evans, Graham., and Jeffrey Newnham. The Penguin Dictionary of International Relations. London: Penguin Books, 1998.