000			00335nam a2200157Ia 4500
008			230523s9999 xx 000 0 und d
082			_a004 NOR
100			_aNorton, Peter
245		0	_aIntrocution to Computers. Ed.7
250			_a7
260			_aDelhi
260			_bMcGraw-Hill
260			_c2011
300			_a628
942			_cTB
999			_c2552 _d2552