000 00444nam a2200181Ia 4500
008 180424s9999 xx 000 0 und d
020 _a155176366
084 _a621.381 5 W3
100 _a"Wagner, David L"
245 0 _aDigital Electronic
250 _a\\198800ENGGPSX
260 _aHarcourt Brace and World
260 _b1988
260 _cNew York.
300 _axv+364p
500 _aincludes index and biblioraphy
942 _cBK
999 _c52502
_d52502