Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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