000			00319nam a2200133Ia 4500
005			20240722130800.0
008			240717s9999 xx 000 0 und d
020			_a8120305167
041			_aeng
100			_aBach M J
245			_aThe desighn of the UNIX operating System
260			_aNew Delhi _c1998
300			_a471
999			_c45605 _d45605