TY  - BOOK
AU  - Bolton, A. G.
AU  - Jain, L. C.
TI  - Analogue filter design: A modern approach 
SN  - 8185842116
U1  - 621. 381 532 BOL J 
PY  - 1993///
CY  - Meerut
PB  - Krishna Prakashan Mandir
KW  - analogue filter design,
KW  - Low pass filters
ER  -