AU  - Schoenbeck,Robert J..
TI  - Electronioc Communications Modulation and Transmission / 
SN  - 81 85274 50 9
U1  - 629.895 
PY  - 1989///
CY  - N.Delhi-110015
PB  - Universal Book Stall , 
KW  - Physics
N1  - NULL
ER  -