PAPP, D. S. (1988). Contemporary International Relations Frameworks For Understanding Daniel S. Papp. Macmillan.
Lua i Stíl Chicago (17ú heag.)PAPP, Daniel S. Contemporary International Relations Frameworks For Understanding Daniel S. Papp. Macmillan, 1988.
Lua MLA (8ú heag.)PAPP, Daniel S. Contemporary International Relations Frameworks For Understanding Daniel S. Papp. Macmillan, 1988.
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