Datta, M. (2001). The significance and growth of the tertiary sector: Indian economy, 1950-97. Northern Book Centre.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDatta, Madhusudan. The Significance and Growth of the Tertiary Sector: Indian Economy, 1950-97. Northern Book Centre, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDatta, Madhusudan. The Significance and Growth of the Tertiary Sector: Indian Economy, 1950-97. Northern Book Centre, 2001.
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