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Dyfyniad Arddull ChicagoSato, Ryuzo. Theory of Technical Change and Economic Invariance. ELSEVIER, 1981.
Dyfyniad MLASato, Ryuzo. Theory of Technical Change and Economic Invariance. ELSEVIER, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.