000			00342nam a2200157Ia 4500
001			16082
008			170722s9999 xx 000 0 und d
100			_aBarker, Eric J.
245			_aExperiments with shapes. 4v /
260			_c1968.
500			_a3
653			_aGeometry
653			_aMathematics
653			_aResearch
942			_cGEN
999			_c73721 _d73721