00639nam a2200193Ia 450000100060000000300050000600500170001100800410002803500200006904000190008911000550010824500700016326000220023330000110025541000660026650400290033265000480036170000360040985744BIBL20170223064017.0781130s1948    dcu      b    000 0 eng d  a(OCoLC)04408363  aTXUcTXUdm.c.20aNational Council for the Social Studieswcn2Local10aGeographic approaches to social educationcClyde F. Kohn, editor.0 aWashingtonc1948.  a299 p.20aNational Council for the Social Studies.tYearbookv19th.wcn  aIncludes bibliographies. 0aSocial sciencesxStudy and teaching.2Local10aKohn, Clyde F .eeditor.2Local