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Dyfyniad Arddull ChicagoTata, Services. Statistical Outline of India 1997-98. 24th. Mumbai: Tata services Ltd, 1997.
Dyfyniad MLATata, Services. Statistical Outline of India 1997-98. 24th. Tata services Ltd, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.