O'Leary, M. K., & Coplin, W. D. (1975). Quantitative techniques in foreign policy analysis and forecasting. Praeger.
Lua i Stíl Chicago (17ú heag.)O'Leary, Michael Kent, agus William D. Coplin. Quantitative Techniques in Foreign Policy Analysis and Forecasting. New York: Praeger, 1975.
Lua MLA (9ú heag.)O'Leary, Michael Kent, agus William D. Coplin. Quantitative Techniques in Foreign Policy Analysis and Forecasting. Praeger, 1975.
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