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Dyfyniad Arddull ChicagoHill, Philip G. Power Generation: Resources Hazard, Technology and Cost. Cambridge: The MIT Press, 1977.
Dyfyniad MLAHill, Philip G. Power Generation: Resources Hazard, Technology and Cost. The MIT Press, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.