TY  - BOOK
AU  - Das, J...et,al
AU  - Mullick, S.K.
AU  - Chatterjee, P. K. 
TI  - Principles of digital communication
SN  - 0852261500
U1  - 621.3819 22
PY  - 2007///
CY  - New Delhi, 
PB  - New Age International
ER  -