Παραπομπή σε μορφή APA (7η εκδ.)

Kegley, C. W., & BY Wittkopf , . E. R. (1983). Perspectives on American foreign policy: Selected readings. St. Martin's Pr..

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kegley, Charles W., και Eugene R. BY Wittkopf. Perspectives on American Foreign Policy: Selected Readings. New York: St. Martin's Pr., 1983.

Παραπομπή σε μορφή MLA (9th εκδ.)

Kegley, Charles W., και Eugene R. BY Wittkopf. Perspectives on American Foreign Policy: Selected Readings. St. Martin's Pr., 1983.