Williams, B. K. (1999). Using information technology: A practical indtroduction to computers and communications (ed.3.). Tata Mc Grawhill publishing.
Dyfyniad Arddull ChicagoWilliams, Brian K. Using Information Technology: A Practical Indtroduction to Computers and Communications. ed.3. New Delhi: Tata Mc Grawhill publishing, 1999.
Dyfyniad MLAWilliams, Brian K. Using Information Technology: A Practical Indtroduction to Computers and Communications. ed.3. Tata Mc Grawhill publishing, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.