TY  - BOOK
AU  - Valkenburg, Van
AU  - Valkenburg, Van
TI  - Analog filter design
SN  - 9780030592461
AV  - 621.381 VAL 1982 
U1  - 621.381 VAL 1982 
PY  - 1982///
CY  - New York
PB  - Saunders College
KW  - Electronic Engineering
ER  -