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Dyfyniad Arddull ChicagoOAKLAND JOHN S. TOTAL QUALITY IN THE CONSTRUCTION SUPPLY CHAIN. AMSTERDAM: ELSEVIER, 2006.
Dyfyniad MLAOAKLAND JOHN S. TOTAL QUALITY IN THE CONSTRUCTION SUPPLY CHAIN. ELSEVIER, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.