Kegley, C. W., & Wittkopf, E. R. (1997). The global agenda: Issues and perspectives (5th ed.). McGraw-Hill.
Chicago Style (17th ed.) CitationKegley, Charles W., i Eugene R. Wittkopf. The Global Agenda: Issues and Perspectives. 5th ed. Boston, Mass: McGraw-Hill, 1997.
Cita MLAKegley, Charles W., i Eugene R. Wittkopf. The Global Agenda: Issues and Perspectives. 5th ed. McGraw-Hill, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.