000 00258nam a2200109Ia 4500
008 190704s9999 xx 000 0 und d
082 _a621.38415 L352
100 _aLATHI,B.P
245 0 _aCOMMUNICATION SYSTEMS
260 _aNEW DELHI
_bWiley
942 _cBB
_2DDC
999 _c6812
_d6812