000 00304nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a621.395
100 _aDonald P Leach
245 0 _aDigital Principles and Applications
250 _a5
260 _bTata Mc Graw Hill , New Delhi
_c2005
942 _cBK
999 _c36708
_d36708