TY  - BOOK
AU  - Sturley, Kenneth Reginald.
TI  - Frequency modulation
AV  - TK6553 .S73
U1  - 621.381 
PY  - 1942///
CY  - London
PB  - Hulton Press
KW  - Radio frequency modulation
N1  - Bibliography: p. 57-58
ER  -