000 00305nam a2200133Ia 4500
008 241129s9999 xx 000 0 und d
100 _aLeaah, Donald P.
245 0 _aDigital principles & applications
250 _a6th
260 _bTata McGraw Hill
260 _c2009
300 _a683
942 _cBK
999 _c21229
_d21229