000 00300nam a2200121Ia 4500
008 160122s9999 xx 000 0 und d
041 _aEnglish
100 _aRebecca Thomas
245 2 _aA User guide to the Unix systems
260 _bDelhi:Tata Mcgraw hill
_c1997
300 _a716p.
650 _aComputer
999 _c748
_d748