00271nam a2200109Ia 4500008004100000082001500041100001400056245004300070250000800113260002900121300001100150190710s9999    xx            000 0 und d  a370.15 D95  aDutt, N K 0aPsychological foundations of education  a3rd  aDelhibDoaba Housec1985  axx,514