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Dyfyniad Arddull ChicagoLaxminarayan, H. Impact of Harvest Combines on Labour-use, Crop Pattern, and Productivity. New Delhi: Agricole Pub. Academy, 1981.
Dyfyniad MLALaxminarayan, H. Impact of Harvest Combines on Labour-use, Crop Pattern, and Productivity. Agricole Pub. Academy, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.