Commission, I. P. (1971). Annual plan: 1970-71. The author.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCommission, India. Planning. Annual Plan: 1970-71. The author, 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCommission, India. Planning. Annual Plan: 1970-71. The author, 1971.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.