Pargellis, S. (1944). The quest for political unity in world history. New York: American Historical Association.
शिकागो स्टाइल उद्धरणPargellis, Stanley. The Quest for Political Unity in World History. New York: American Historical Association, 1944.
एमएलए उद्धरणPargellis, Stanley. The Quest for Political Unity in World History. New York: American Historical Association, 1944.
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