TY  - BOOK
AU  - Huelsman,Lawrence P.
TI  - Active and passive analog filter design: an introduction 
SN  - 0070308608
AV  - TK7872 .F5  .H83 1993
PY  - 1993///
CY  - New York
PB  - McGraw-Hill
KW  - Electric filters, Active
KW  - Design
KW  - Electric filters, Passive
ER  -