TY  - BOOK
AU  - Frenzel, Louis E.
TI  - Communication electronics: principles and applications 
SN  - 9780070483989
AV  - D4191 
U1  - 621.382 22
PY  - 1999///
CY  - New Delhi
PB  - Tata McGraw-Hill
N1  - Includes index
ER  -