India. Ministry of Planning. Department of Statistics. Central Statistical Organization (Industrial Statistics Wing). (1976). Annual survey of industries (Census sector) 1969 Volume VII. Controller of Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndia. Ministry of Planning. Department of Statistics. Central Statistical Organization (Industrial Statistics Wing). Annual Survey of Industries (Census Sector) 1969 Volume VII. Delhi: Controller of Publications, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIndia. Ministry of Planning. Department of Statistics. Central Statistical Organization (Industrial Statistics Wing). Annual Survey of Industries (Census Sector) 1969 Volume VII. Controller of Publications, 1976.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.