000 00261nam a2200121Ia 4500
020 _a9788131720929
082 _a621.38215
100 _aSKLAR BERRARD
245 _aDIGITAL COMMUNICATIONS
250 _a2 ND
260 _aNEW DELHI
_b PEARSON
_c2009
942 _cBK
999 _c6737
_d6737