TY  - BOOK
AU  - Downing,John J.
TI  - Modulation systems and noise
U1  - 621.38 
PY  - 1964///
CY  - New Jersey
PB  - Prentice-Hall
KW  - Digital communications
KW  - Modulation (Elecatronics)
N1  - Includes index; Bibliography: p. 200-209
ER  -