A comparative study in problem solving ability of a group of negro and white children of average intelligence by socio-economic level /

Heath, Paul Allen,2013-08-162013-08-161970http://hdl.handle.net/11244/2927vii, 64 leaves :Education, Special.Students Social conditions.Students Economic conditions.Problem solving.A comparative study in problem solving ability of a group of negro and white children of average intelligence by socio-economic level /Thesis