000 00260nam a2200109Ia 4500
008 190516s9999 xx 000 0 und d
100 _aBACH(MAURICE J)
245 0 _aDESIGN OF THE UNIX OPERATING SYSTEM
260 _c1995
_bND PHI
300 _a471
942 _cBK
999 _c17181
_d17181