00351nam a2200121Ia 450000500170000000800460001703700290006304000200009204100130011208400250012524500690015030000100021920250508155042.0008  250505s9999    xx            000 0 eng d  aBooks to be hide in OPAC  aFEDLbengcFEDL  aeng2eng  a371.123, CIE/OqFEDL 0aImproving instruction (Report of the summer camp of principals )  a116p.