Quetico-Superior Wilderness Research Center & Lakela, O. (1962). Revised check-list of ferns and flowering plants of the Quetico-Superior Wilderness Research Center. the Center.
Dyfyniad Arddull ChicagoQuetico-Superior Wilderness Research Center and Olga Lakela. Revised Check-list of Ferns and Flowering Plants of the Quetico-Superior Wilderness Research Center. Ely, Minn.: the Center, 1962.
Dyfyniad MLAQuetico-Superior Wilderness Research Center and Olga Lakela. Revised Check-list of Ferns and Flowering Plants of the Quetico-Superior Wilderness Research Center. the Center, 1962.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.