TY  - BOOK
AU  - FitzGerald, Jerry and Dennis, Alan 
TI  - Business data comminications and networking 
SN  - 9812-53-183-1 
U1  - 005.71 FIT  
PY  - 2005///
CY  - John wiley and sons 
PB  - New Delhi 
KW  - DATA COMMUNICATION
ER  -