000			00437nam a2200157Ia 4500
003			NIELib
008			211019s9999||||xx |||||||||||||| ||und||
020			_a0356050009
082			_a507.07 _bCOL
100			_aCollis, Margaret _95605
245			_aUsing the environment : 3 tackling problems .part 2
260			_bMacdonald Educational, _c1974. _aLondon :
300			_a72p.; _bill.; _c22cm
650		0	_93229 _aScience
942			_2ddc _cSR
999			_c35172 _d35172