TY  - BOOK
AU  - Middlehurst,Jack
AU  - Harrison,Roger
AU  - Harrison,Roger
TI  - Practical filter design/book and disk
SN  - 0137199805 (paperback)
PY  - 1993///
CY  - [S.l.]
PB  - Prentice Hall
UR  - http://www.amazon.com/exec/obidos/ASIN/0137199805/chopaconline-20
ER  -