000			00312 a2200109 4500
082			_aCH500
100			_aLagcs, R. G.
245			_aHow and why in science services: _bjunior series / _cR. G. Lagcs
260			_aBombay : _bOxford University Press, _cc.
300			_ap.
650			_aHow And Why In science Services
999			_c10430 _d10430