APA

Bull H., . (1995). The anarchical society : a study of order in world politics / Hedley Bull. New York: Columbia University Press.

Chicago

Bull Hedley, . 1995. The anarchical society : a study of order in world politics / Hedley Bull. New York: Columbia University Press.

Harvard

Bull H., . (1995). The anarchical society : a study of order in world politics / Hedley Bull. New York: Columbia University Press.

MLA

Bull Hedley, . The anarchical society : a study of order in world politics / Hedley Bull. New York: Columbia University Press. 1995.