00479nam a2200157Ia 450000500170000000800460001703700290006304000210009204100130011308400230012610000170014924500350016624500520020126000600025330000080031320250508153425.0008  250505s9999    xx            000 0 eng d  aBooks to be hide in OPAC  aFEDL bengcFEDL  aeng2eng  a027.8, UNI/OqFEDL  aBeust Nora E 0aSchool library standards, 1954 0cU S Department of Health, Education and Welfare  aWashington, USAbU.S. Government Printing Office c1954  a41p