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Dyfyniad Arddull ChicagoCULP, Archie W. Principles of Energy Conversion. Tokyo: McGraw-Hill Kogakusha, 1979.
Dyfyniad MLACULP, Archie W. Principles of Energy Conversion. McGraw-Hill Kogakusha, 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.