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Dyfyniad Arddull ChicagoEspear, W. Proceedings: Amorphous and Liquid Semiconductors. Edinburgh: Centre for Industrial consultancy, 1977.
Dyfyniad MLAEspear, W. Proceedings: Amorphous and Liquid Semiconductors. Centre for Industrial consultancy, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.