TY  - BOOK
AU  - Black,Uyless  .
TI  - Computer networks : protocols, standards, and interfaces / 
SN  - 81-203-1041-1
U1  - 004.6 
PY  - 2000///
CY  - New Delhi : 
PB  - Prentice Hall , 
KW  - Computer networks
ER  -