000 00294nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _a"Bach, M.J."
245 4 _aThe Design of the Unix operating system
260 _bPHI Learning Pvt. Ltd
260 _c1986
365 _b0.00
942 _cBK
999 _c141292
_d141292