"Shankardass, R. D. (1988). Vallabhbhai Patel: Power and organization in indian politics. Orient Longman.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Shankardass, Rani Dhavan". Vallabhbhai Patel: Power and Organization in Indian Politics. Orient Longman, 1988.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Shankardass, Rani Dhavan". Vallabhbhai Patel: Power and Organization in Indian Politics. Orient Longman, 1988.
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