TY  - BOOK
AU  - Schoenbeck, Robert, J 
TI  - Electronic communication modulation and transmission 
SN  - 81-203-1483-2 
U1  - 621.382 SCH  
PY  - 2002///
CY  - Prentice hall of india 
PB  - New Delhi 
KW  - COMMUNICATION SYSTEM
ER  -