TY  - BOOK
AU  - Stallings, Willam 
TI  - Data and computer communications 
SN  - 81-7808-442-2 
U1  - 00 5.71 STA  
PY  - 2003///
CY  - Prentice hall of india 
PB  - New Delhi 
KW  - COMPUTER NETWORK
ER  -