India. Industry Ministry of, B. o. P. E. (1987). Public enterprises survey, 1985-86: Annual report on the working of industrial and commercial undertakings of the Central Government. The author.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndia. Industry Ministry of, Bureau of Public Enterprises. Public Enterprises Survey, 1985-86: Annual Report on the Working of Industrial and Commercial Undertakings of the Central Government. The author, 1987.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIndia. Industry Ministry of, Bureau of Public Enterprises. Public Enterprises Survey, 1985-86: Annual Report on the Working of Industrial and Commercial Undertakings of the Central Government. The author, 1987.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.