000 00320nam a2200121Ia 4500
008 220601s2009 xx 000 0 eng d
100 _aSHARMA,SANJAY
245 0 _aCOMMUNICATION SYSTEMS(ANALOG AND DIGITAL)
250 _a4th Ed.
260 _c2009
_aNew Delhi
_bS.K.KATARIA & SONS
300 _a972
942 _2ddc
_cBTECH
_01
999 _c2544
_d2544