Volkov, G. N. (1978). Birth of a genius: The development of the personality and world outlook of Karl Marx. Progress Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVolkov, G. N. Birth of a Genius: The Development of the Personality and World Outlook of Karl Marx. Progress Publishers, 1978.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVolkov, G. N. Birth of a Genius: The Development of the Personality and World Outlook of Karl Marx. Progress Publishers, 1978.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.