00504nam a2200157Ia 450000500170000000800460001703700290006304000210009204100130011308400250012610000250015124500990017625000080027526000470028330000160033020250508152727.0008  250505s9999    xx            000 0 eng d  aBooks to be hide in OPAC  aFEDL bengcFEDL  aeng2eng  a001.403, ENC/OqFEDL  aHarris Chester W Ed. 0aEncyclopedia of education research: A project of the american educational research association  a3rd  aNew York, USAbThe Macmillan Companyc1960  axxix,1564p.