.Zachariah, K. C. (1963). historical study of internal migation in the indian sub-continent, 1901-1931. Demographic training and research centre.
Chicago-viite (17. p.).Zachariah, K. C. Historical Study of Internal Migation in the Indian Sub-continent, 1901-1931. Bombay: Demographic training and research centre, 1963.
MLA-viite (9. p.).Zachariah, K. C. Historical Study of Internal Migation in the Indian Sub-continent, 1901-1931. Demographic training and research centre, 1963.