Stallings, W. (1999). ISDN and broadband ISDN with frame relay and ATM (4th ed.). Pearson/Prentice Hall.
Dyfyniad Arddull ChicagoStallings, William. ISDN and Broadband ISDN with Frame Relay and ATM. 4th ed. Upper Saddle River, N.J. ; New Delhi: Pearson/Prentice Hall, 1999.
Dyfyniad MLAStallings, William. ISDN and Broadband ISDN with Frame Relay and ATM. 4th ed. Pearson/Prentice Hall, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.