000 002640000a22001210004500
245 _aElectronic computer technology
100 _aScott, N.R.
260 _aTokyo
_bMcGraw Hill
_c1970
300 _a618 p.
080 _a681.31
_bS3
041 _aEN
942 _cBK
999 _c105083
_d105083