TY  - BOOK
AU  - Paynter,Robert.
TI  - Introductory electronic devices and circuits: conventional flow version / 
SN  - 0132626500
U1  - 621.3815  
PY  - 1997///
CY  - Upper Saddle River, New Jersey
PB  - Prentice Hall, 
KW  - Electeric filters, active.
KW  - Electric circuits
ER  -