000 00269nam a2200109Ia 4500
008 190516s9999 xx 000 0 und d
100 _aRAY JOAN &RAY WILLIAM
245 0 _aTEACH YOURSELF UNIX SYSTEM ADMINIST
260 _c1999
_bTECHMEDIA
300 _a811
942 _cBK
999 _c18892
_d18892