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Dyfyniad Arddull ChicagoPantry and Griffiths. Creating a Successful E-information Service. London: Facet Pub, 2002.
Dyfyniad MLAPantry and Griffiths. Creating a Successful E-information Service. Facet Pub, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.