000 00288nam a2200133Ia 4500
100 _aRoberts/M.J
942 _cBK
654 _asignal
245 _aSignals and systems
260 _bTata Mc Graw hill
_aNew Delhi
_c2003
082 _a621.2822
_bROB
300 _a1054
546 _aENGLISH
999 _c23021
_d23021