00411nam a2200157Ia 450000500170000000800460001703700120006304000210007504100130009608400210010910000180013024500270014826000410017530000140021665000230023020250508151201.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDL bengcFEDL  aeng2eng  a371.3, SPEqFEDL  aSpears Harold 0aPrinciples of teaching  aNew York, USA bPrentice Hall c1951  axii,339p.  aTeaching Technique