TY  - BOOK
AU  - Das,J.
AU  - Mullick,S.K.
AU  - Chatterjee,P.K.
TI  - Principles of digital communication
U1  - 001.64 
PY  - 1986///
CY  - New Delhi
PB  - Wiley
KW  - Digital communications
N1  - "A Halsted Press book."
ER  -