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Dyfyniad Arddull ChicagoWinter, Francis de [Ed.]. Sun,Mankind's Future Sources of Energy: Proceedings of the International Solar Enery Society Congress Newdelhi-January 1978. New York: Pergamon Press, 1978.
Dyfyniad MLAWinter, Francis de [Ed.]. Sun,Mankind's Future Sources of Energy: Proceedings of the International Solar Enery Society Congress Newdelhi-January 1978. Pergamon Press, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.