"Varkey, O. (1974). At the cross roads: "the sino-indian border dispute and the communist party of India,1959-1963". Minerva publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Varkey, Ouseph". At the Cross Roads: "The Sino-indian Border Dispute and the Communist Party of India,1959-1963". Minerva publishers, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Varkey, Ouseph". At the Cross Roads: "The Sino-indian Border Dispute and the Communist Party of India,1959-1963". Minerva publishers, 1974.
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