TY  - GEN
AU  - Roddy,Dennis
AU  - Coolen,John
TI  - Electronic communications
SN  - 0835916316
U1  - 621.38,ROD 
PY  - 1981///
CY  - Reston, Va.
PB  - Reston Pub. Co.
KW  - Electronics
KW  - Telecommunication
N1  - Part-1: Communications Fundamentals (Page-1), Part-2: Electronic Communications Circuits (Page-137), Part-3: Modulation of Signals (Page-239), Part-4: Transmission and Radiation of Signals (Page-367), Part-5: Communication Systems (Page-507).
ER  -