India. Central Statistical Organisation. (1976). Annual survey of industries 1969 census sector: Vol V. Central Statistical Organisation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndia. Central Statistical Organisation. Annual Survey of Industries 1969 Census Sector: Vol V. Central Statistical Organisation, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIndia. Central Statistical Organisation. Annual Survey of Industries 1969 Census Sector: Vol V. Central Statistical Organisation, 1976.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.