00387nam a2200145Ia 450000500170000000800410001708200120005810000250007024500440009526000350013930000080017465000350018294200070021799900170022420240821151620.0240821s9999||||xx |||||||||||||| ||und|| a371 HOR aHorace, Mann-Lincoln 0aTeachers role in pupil-teacher Planning aColumbiabColumbia Univ.c1954 a27p aTeaching and teaching Personal cBK c35346d35346