000 00285nam a2200121Ia 4500
008 231004s9999||||xx |||||||||||||| ||und||
020 _a9788131510872
041 _aeng
100 _aGopalan, K Gopal
245 0 _aSignals and Systems
260 _bCengage learning
_c2009
942 _cBK
999 _c22479
_d22479