Citazione APA

Palmer,, N. D., & Perkins,, H. C. (1997). International relations (3rd rev. ed.). A.I.T.B.S.

Stile di citazione Chicago

Palmer,, Norman D., e Howard C. Perkins. International Relations. 3rd rev. ed. Delhi: A.I.T.B.S, 1997.

Citazione MLA

Palmer,, Norman D., e Howard C. Perkins. International Relations. 3rd rev. ed. A.I.T.B.S, 1997.