000 00286nam a2200121Ia 4500
008 200615s9999||||xx |||||||||||||| ||und||
082 _a621.3
_bSIG-O
100 _aOPPENHEIM,ALAN V
245 0 _aSIGNALS AND SYSTEMS
250 _a2ND
260 _aNew Delhi
_bPEARSON
_c2018
942 _cBK
999 _c29727
_d29727