TY  - BOOK
AU  - Proakis, John, G Salehi, Masoud 
TI  - Communication systems engineering 
SN  - 81-7808-610-7 
U1  - 621.382 PRO  
PY  - 2002///
CY  - Pearson education of asia 
PB  - Delhi 
KW  - COMMUNICATION SYSTEM
ER  -