TY  - BOOK
AU  - Black, Uyless 
TI  - Computer networks: Protocols standards, and interfaces 
SN  - 81-203-1041-1 
U1  - 004.6 BLA  
PY  - 2002///
CY  - Prentice hall of india 
PB  - New Delhi 
KW  - COMPUTER NETWORK
ER  -