(1971). Society and revolution: Esssays in honour of Engels. People's pub. house.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSociety and Revolution: Esssays in Honour of Engels. People's pub. house, 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSociety and Revolution: Esssays in Honour of Engels. People's pub. house, 1971.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.