(1989). Critical issues in information processing management and technology.V.4. QED information sciences.
Dyfyniad Arddull ChicagoCritical Issues in Information Processing Management and Technology.V.4. Wellesley: QED information sciences, 1989.
Dyfyniad MLACritical Issues in Information Processing Management and Technology.V.4. QED information sciences, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.