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Dyfyniad Arddull ChicagoChawla, HS. Introduction to Plant Biotechonlogy. 3rd ed. New Delhi: Oxford & IBH, 2009.
Dyfyniad MLAChawla, HS. Introduction to Plant Biotechonlogy. 3rd ed. Oxford & IBH, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.