TY  - BOOK
AU  - "Valkinburg, M.E. Van"
TI  - Analog filter design
SN  - 0-03-059246-0-1
U1  - 621.3815324 
PY  - 1982///
CY  - U.S.A.
PB  - "Holt, Rinehart and Winston"
ER  -