00719nam a2200205Ia 450000500170000000800460001703700120006304000200007504100130009508400190010810000270012724501190015425000060027326000530027930000130033249000260034594200190037199900210039095201020041120250508155513.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDLbengcFEDL  aeng2eng  a373, RIVqFEDL  aRivlin Harry N9315581 0aTeaching adolescents in secondary schools : The principles of effective teaching in junior and senior high schools  a2  aNew York, USAbAppleton - Century - Croftsc1961  axiv,479p  aTextbook in education  cTEXLh373, RIV  c1357325d1357325  00104070aFEDLbFEDLd2025-05-08l0o373, RIVpEL0042528r2025-05-08 15:55:13w2025-05-08yTEXL