Roucek, J. S. (1944). A challenge to peacemakers. American Academy of Political and Social Science.
Citace podle Chicago (17th ed.)Roucek, Joseph Slabey. A Challenge to Peacemakers. Philadelphia: American Academy of Political and Social Science, 1944.
Citace podle MLA (9th ed.)Roucek, Joseph Slabey. A Challenge to Peacemakers. American Academy of Political and Social Science, 1944.
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