TY  - BOOK
AU  - Bryce, James, Y 
TI  - Using ISDN 
SN  - 81-203-1304-6 
U1  - 004.6 BRY  
PY  - 1998///
CY  - Prentice hall of india 
PB  - New Delhi 
KW  - COMPUTER NETWORK
ER  -