000			00253nam a2200097Ia 4500
008			230915s9999 xx 000 0 und d
050			_aT 9.H69 2003 VOL 15
100			_aHOROBIN, WENDY
245		0	_aHOW IT WORKS SCIENCE AND TECHNOLOGY
942			_cBK
999			_c202234 _d202234