000			00626nam a2200169 a 4500
001			4140
005			20140414131932.0
008			090218s19uu xx 00 eng d
020			_a0809448734
050			_aREF 620 _bCh43 1989
245			_aHow things work.
260			_aAlexandria, Va : _bTime-Life Books, _cc1989.
440			_aA Child's first library of learning
520			_aQuestions and answers provide information about how cameras, elevators, car engines, tops, yo-yos, and other devices work. Includes charts, diagrams, and an activities section.
650			_aTechnology _xJuvenile literature.
999			_c112244 _d112244