00636nam a2200193Ia 450000500170000000800410001704100090005808200230006710000220009024501070011226000460021930000210026544000650028665000140035165000270036570000230039270000190041588000080043420200220105838.0171129s9999||||xx |||||||||||||| ||und||  aeng.  a370.150472bSIM-ED  aSimon, Joan,  tr. 0aEducational psychology in the U.S.S.R./ctranslated by John Simon; edited by Brian and Joan Simon6880  aLondon :bRoutledge and Kegan Paul,c1963  axi, 283p.; 21cm.  aInternational library of sociology and social reconstruction  aEducation  aEducational psychology  aSimon, Brian,  ed.  aMannheim, Karl  6245