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Lua i Stíl Chicago (17ú heag.).Zachariah, K. C. Historical Study of Internal Migation in the Indian Sub-continent, 1901-1931. Bombay: Demographic training and research centre, 1963.
Lua MLA (9ú heag.).Zachariah, K. C. Historical Study of Internal Migation in the Indian Sub-continent, 1901-1931. Demographic training and research centre, 1963.