000 00332nam a2200133Ia 4500
008 241226s9999 xx 000 0 und d
020 _a0
082 _bKER
100 _aKernighan,Brian W.
245 4 _aThe unix programming enviroment
260 _aNew Delhi :
_bPhi Learning,
_c2021.
350 _a250
650 _aCommunication
999 _c172872
_d172872