Silverston, L., & Agnew, P. (2009). The data model resource book. Wiley India.
Dyfyniad Arddull ChicagoSilverston, Len, and Paul Agnew. The Data Model Resource Book. Indianapolis, Ind. ; New Delhi: Wiley India, 2009.
Dyfyniad MLASilverston, Len, and Paul Agnew. The Data Model Resource Book. Wiley India, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.