000 00271nam a2200109Ia 4500
008 220201s2015 xx 000 0 eng d
100 _aRoberts, M.J
245 0 _aFundamental of Signal & Systems
260 _aNew Delhi
_bTata Mc Graw
_c2015
300 _a768
942 _2ddc
999 _c66194
_d66194