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Dyfyniad Arddull ChicagoKirk, John T. O. Light and Photosynthesis in Aquatic Ecosystems. London: Cambridge University Press, 1983.
Dyfyniad MLAKirk, John T. O. Light and Photosynthesis in Aquatic Ecosystems. Cambridge University Press, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.