TY  - BOOK
AU  - Tomasi, Wayne 
TI  - Introduction to data commuications and networking 
SN  - 978-81-317-1953-4 
U1  - 005.71 TOM  
PY  - 2007///
CY  - Pearson education asia 
PB  - New Delhi 
KW  - DATA COMMUNICATION
ER  -