"Leonhard, W. (1979). Three faces of marxism: "the political concepts of Soviet ideology,maoism and humanist marxism".
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Leonhard, Wolfgang;Osers. Three Faces of Marxism: "The Political Concepts of Soviet Ideology,maoism and Humanist Marxism". 1979.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Leonhard, Wolfgang;Osers. Three Faces of Marxism: "The Political Concepts of Soviet Ideology,maoism and Humanist Marxism". 1979.
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