United Nations Centre for Regional Development. (1988). Information systems for government and business: Trends, issues, challenges. UNCRD.
Dyfyniad Arddull ChicagoUnited Nations Centre for Regional Development. Information Systems for Government and Business: Trends, Issues, Challenges. Nagoya, Japan: UNCRD, 1988.
Dyfyniad MLAUnited Nations Centre for Regional Development. Information Systems for Government and Business: Trends, Issues, Challenges. UNCRD, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.