TY  - BOOK
AU  - Harwood, H. D.
ED  - British Broadcasting Corporation
TI  - Apparatus for measurement of non-linear distortion as a continuous function of frequency (no.49)
U1  - 621.388 
PY  - 1963///
CY  - New York
PB  - British Broadcasting Corporation
KW  - Non-linear distortion
ER  -