Kegley, C. W., & Wittkopf, E. R. (1996). American foreign policy: Pattern and process (Ed.5.).
Chicago Edition CitationKegley, Charles W., i Eugene R. Wittkopf. American Foreign Policy: Pattern and Process. Ed.5. New York, St Martins press, 1996.
Cita MLAKegley, Charles W., i Eugene R. Wittkopf. American Foreign Policy: Pattern and Process. Ed.5. 1996.
Atenció: Aquestes cites poden no estar 100% correctes.