00386cam a22001217a 4500008004000000082001500040245008300055260004000138300001000178650001300188650004100201700002200242180718b1959 xxu||||| |||| 00| 0 eng d aP43x4 C832 aDifferentiation and guidance in the comprehensive schoolcby Council of Europe aStockhomsbAlmqvist & Wiksellc1959 a196p. aGuidance aDifferentiation-Comprehensive school aCouncil of Europe