000			00381nam a2200145Ia 4500
008			230711s9999||||xx |||||||||||||| ||und||
041			_aENG
082			_a4 _bBE-S
100			_aBeck,Leland L
245		0	_aSystem software : introduction to system programming
250			_a3rd . . Ed.
260			_c1999 _aNew Delhi _bAddison Wesley
650			_aComputer Engineering
942			_cBK
999			_c3728 _d3728