APA সাইটেশন

Kegley, C. W., & Wittkopf, E. R. (1997). World politics: Trend and transformation (6th ed.). New York: St. Martin's Press.

শিকাগো স্টাইলে সাইটেশন

Kegley, Charles W., এবং Eugene R. Wittkopf. World Politics: Trend and Transformation. 6th ed. New York: St. Martin's Press, 1997.

এমএলএ সাইটেশন

Kegley, Charles W., এবং Eugene R. Wittkopf. World Politics: Trend and Transformation. 6th ed. New York: St. Martin's Press, 1997.