00526nam a22001577a 4500020001500000040000900015082001700024100002700041245005300068250001900121260003800140650005300178942001200231999001900243952010600262  a8178084228  cNUST  a621.382bSTA  aWilliam Stallings9669  aISDN And Broadband ISDN with Frame Relay and ATM  aFourth Edition  aIndia:bPearson Education,c2002.  2ISDN And Broadband ISDN with Frame Relay and ATM  2ddccBK  c611077d611077  00102ddc4070aCEMEbCEMEcGENd2024-08-24l0o621.382 STApCEME- 36373r2024-08-24w2024-08-24yBK