India. Labour and Rehabilitation, M. o. (1974). Trade unions in India: 1968. Controller of Pub.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndia. Labour and Rehabilitation, Ministry of. Trade Unions in India: 1968. Controller of Pub, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIndia. Labour and Rehabilitation, Ministry of. Trade Unions in India: 1968. Controller of Pub, 1974.
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