APA (7th ed.) Citation

Singer, J. D. (1990). Models, methods, and progress in world politics: A peace research odyssey. Westview Press.

Chicago Style (17th ed.) Citation

Singer, Joel David. Models, Methods, and Progress in World Politics: A Peace Research Odyssey. Boulder, Colo: Westview Press, 1990.

MLA (9th ed.) Citation

Singer, Joel David. Models, Methods, and Progress in World Politics: A Peace Research Odyssey. Westview Press, 1990.