000			00349nam a2200145 4500
003			OSt
008			220602b |||||||| |||| 00| 0 eng d
082			_a372.73 _bLAW
100			_aLaw, Margaret
245			_aNumber Building _bBook Two
260			_aMiddleaex: _bNelson, _c1970.
300			_a42p.; _c22cm
650		0	_aMathematics
942			_2ddc _cLM
999			_c140200 _d140200