000 00309nam a22001337a 4500
999 _c3834
_d3834
020 _a970070141704
082 _a384.04
100 _aDonald P Leach & Other's
245 _aDigital Principles and Applications
250 _a7th
260 _aNew York
_bTata McGraw-Hill
_c2011
300 _a682
942 _cBK
_02