00479nam a2200121Ia 4500008004100000040001700041082002400058100002600082245010600108260004100214300001600255650008600271190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta370.15bR522E  aRichardson, Elizabeth 4aThe Environment of learningbconflict and understanding in the secondary schoolcElizabeth Richardson  aLondonbThomas Nelson and Sonsc1967  aviii, 247p.  aEducation, Secondary; Education-Aims and objectives; Education-Study and teaching