APA استشهاد

Kegley,Charles W, & Eugene R Wittkofp. (2001). World Politics: : trends and transformation (ed.8.). Bedford.

استشهاد بنمط شيكاغو

Kegley,Charles W, و Eugene R Wittkofp. World Politics: : Trends and Transformation. ed.8. Boston: Bedford, 2001.

MLA استشهاد

Kegley,Charles W, و Eugene R Wittkofp. World Politics: : Trends and Transformation. ed.8. Bedford, 2001.