TY  - BOOK
AU  - Ziemer , R F
AU  - Tranter , W H.
TI  - Principles of communications : systems modulation and noise 
SN  - 8172245327 
U1  - 621.382 
PY  - 1994///
CY  - Mumbai
PB  - Jaico Publisher
KW  - Applied physics
ER  -