TY  - BOOK
AU  - Humpherys,DeVerl S.
TI  - The analysis, design, and synthesis of electrical filters
T2  - Prentice-Hall networks series
U1  - 621.381/532 
PY  - 1970///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall, 
KW  - FILTROS ELÉCTRICOS
ER  -