000 00218 a2200097 4500
001 26501
100 _aJohnson D
245 _aIntroduction to filter theory
260 _a
_bPrentice-Hall
_c1976
090 _c17810
_d17810
942 _aNUST-CAE
_cM
_c8681
999 _c261574
_d261574