Falkowski, L. S. (1978). Presidents, secretaries of state, and crises in U.S. foreign: Relations : a model and predictive analysis. Westview Pr..
Chicago-viite (17. p.)Falkowski, Lawrence S. Presidents, Secretaries of State, and Crises in U.S. Foreign: Relations : a Model and Predictive Analysis. Boulder, Colo.: Westview Pr., 1978.
MLA-viite (9. p.)Falkowski, Lawrence S. Presidents, Secretaries of State, and Crises in U.S. Foreign: Relations : a Model and Predictive Analysis. Westview Pr., 1978.
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