India. Registrar general and census commissioner & Narayanan, K. (1975). Census of India 1971. Series 9, Kerala: Economic tables. s.n.
Style de citation Chicago (17e éd.)India. Registrar general and census commissioner et K. Narayanan. Census of India 1971. Series 9, Kerala: Economic Tables. s.n, 1975.
Style de citation MLA (9e éd.)India. Registrar general and census commissioner et K. Narayanan. Census of India 1971. Series 9, Kerala: Economic Tables. s.n, 1975.
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