Olson , W. C., & By Sonderman , . F. A. (1966). The Theory and practice of international relations (2nd ed.). Prentice - Hall.
Citace podle Chicago (17th ed.)Olson , William C., a Fred A. By Sonderman. The Theory and Practice of International Relations. 2nd ed. Englewood Cliffs N. J.: Prentice - Hall, 1966.
Citace podle MLA (9th ed.)Olson , William C., a Fred A. By Sonderman. The Theory and Practice of International Relations. 2nd ed. Prentice - Hall, 1966.
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