Coombs, P. H. (1964). The fourth dimension of foreign policy: Educational and cultural affairs. Harper and Row.
Chicago Style (17. basım) AtıfCoombs, Philip H. The Fourth Dimension of Foreign Policy: Educational and Cultural Affairs. Nueva York: Harper and Row, 1964.
MLA (9th ed.) AtıfCoombs, Philip H. The Fourth Dimension of Foreign Policy: Educational and Cultural Affairs. Harper and Row, 1964.
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