Hüfner, K., Metzger, M., & Reichenstein, B. (2000). Challenges for international organizations in the 21st century: Essays in honor of Klaus Hüfner. St. Martin's Press.
Chicago Style (17th ed.) CitationHüfner, Klaus, Martina Metzger, and Birgit Reichenstein. Challenges for International Organizations in the 21st Century: Essays in Honor of Klaus Hüfner. New York: St. Martin's Press, 2000.
MLA (9th ed.) CitationHüfner, Klaus, et al. Challenges for International Organizations in the 21st Century: Essays in Honor of Klaus Hüfner. St. Martin's Press, 2000.
Warning: These citations may not always be 100% accurate.