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Dyfyniad Arddull ChicagoSomani, L.L. Dictionary of Weed Science. ed. Udaipur: Agrotech publishing academy, 1992.
Dyfyniad MLASomani, L.L. Dictionary of Weed Science. ed. Agrotech publishing academy, 1992.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.