000			00329nam a2200145Ia 4500
008			240201s1998 xx 000 0 eng d
020			_a9780174482680
082			_a574 ADD
100			_aADDS,JOHN
245		0	_aSYSTEMS AND THEIR MAINTENANCE
260			_bNELSON _c1998
300			_a170
650			_aSCIENCE
942			_2ddc _cBK
999			_c6428 _d6428