000			00367nam a2200145Ia 4500
008			230711s9999||||xx |||||||||||||| ||und||
041			_aENG
082			_a5 _bBA-U
100			_aBach M.J
245		4	_aThe design of the unix operating system
250			_a5th
260			_c1990 _aNew Delhi _bPHI Learning Private Limited
650			_aComputer Engineering
942			_cBK
999			_c187 _d187