Cita APA (7th ed.)

Kegley, C. W., & Wittkopf, E. R. (2001). World politics: Trend and transformation (8th ed.). Bedford/St. Martin's Press.

Cita Chicago (17th ed.)

Kegley, Charles W., i Eugene R. Wittkopf. World Politics: Trend and Transformation. 8th ed. Boston: Bedford/St. Martin's Press, 2001.

Cita MLA (9th ed.)

Kegley, Charles W., i Eugene R. Wittkopf. World Politics: Trend and Transformation. 8th ed. Bedford/St. Martin's Press, 2001.