Falkowski, L. S. (1978). Presidents, secretaries of state, and crises in U.S. foreign: Relations :a model and predictive analysis. Westview Pr.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)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 -ийн эшлэл (9 дэх хэвлэлт)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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