Duncan, W. R., Jancar-Webster, B., & Switky, B. (2009). World politics in the 21st century: Student choice edition. Houghton Mifflin Harcourt Publishing Company.
Chicago Style (17th ed.) CitationDuncan, W. Raymond, Barbara Jancar-Webster, and Bob Switky. World Politics in the 21st Century: Student Choice Edition. Boston: Houghton Mifflin Harcourt Publishing Company, 2009.
MLA (9th ed.) CitationDuncan, W. Raymond, et al. World Politics in the 21st Century: Student Choice Edition. Houghton Mifflin Harcourt Publishing Company, 2009.
Warning: These citations may not always be 100% accurate.