Gaya APA

Dougherty, J, E., Jr., R, L, P. (1981). Contending theories of international relations: a comprehensive survey (Ed. 2). New York: Harper and Row, Publishers.

Gaya MLA

Dougherty, James, E.., Jr., Robert, L., Pfaltzgraff,. "Contending theories of international relations: a comprehensive survey". Ed. 2 New York: Harper and Row, Publishers, 1981. Buku.