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Dyfyniad Arddull ChicagoSmall, Ernest. North American Cornucopia: Top 100 Indigenous Food Plants. Taylor & Francis, 2013.
Dyfyniad MLASmall, Ernest. North American Cornucopia: Top 100 Indigenous Food Plants. Taylor & Francis, 2013.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.