.Zachariah, K. C. (1963). historical study of internal migation in the indian sub-continent, 1901-1931. Demographic training and research centre.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र.Zachariah, K. C. Historical Study of Internal Migation in the Indian Sub-continent, 1901-1931. Bombay: Demographic training and research centre, 1963.
एमएलए (9वां संस्करण) प्रशस्ति पत्र.Zachariah, K. C. Historical Study of Internal Migation in the Indian Sub-continent, 1901-1931. Demographic training and research centre, 1963.
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