APA Edition Citation

Duncan, R. W., Jancer-Webster, & Switky. (2002). World Politics in the 21st Century. Longman.

Chicago Edition Citation

Duncan, Raymond W., Jancer-Webster, and Switky. World Politics in the 21st Century. New York: Longman, 2002.

MLA Edition Citation

Duncan, Raymond W., et al. World Politics in the 21st Century. Longman, 2002.