000 00309nam a2200133Ia 4500
008 230401s2012 xx 000 0 eng d
082 _a621.382
100 _aSCHWEBER (WILLIAMS)
245 0 _aELECTRONIC COMMUNICATION SYSTEM
250 _a4
260 _bDELHI PHI
_c2012
300 _a820
942 _2ddc
_cBTECH
999 _c239
_d239