TY  - BOOK
AU  - Hilburn, John L.  
AU  - Johnson, David E. 
TI  - Manual of active filter design
SN  - 0-07-028759-7
PY  - 1973///
CY  - New York
PB  - McGraw-Hill
KW  - Electric FiltersElectronic Circuit DesignElectronics - Graphic Methods
ER  -