000 00282nam a2200133Ia 4500
654 _aELN
100 _aSchoenbeck, R.J.
250 _a3rd Ed.
245 _aElectronic Communications
260 _bBHC
_c1993
082 _bSCH
_a621.38131
300 _ax, 258p.
999 _c2379
_d2379
300 _c23 cm.
655 _aF-02
041 _aeng
546 _aText in English