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Dyfyniad Arddull ChicagoBasic Considerations of Modern Industrial Policy. Eindhoven: N. V. Philips' Gloeilampenfabrieken, 1970.
Dyfyniad MLABasic Considerations of Modern Industrial Policy. Eindhoven: N. V. Philips' Gloeilampenfabrieken, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.