000 00280nam a2200121Ia 4500
100 _aSpears, Harold
942 _cBK
654 _a
245 _aImproving the supervision of instruction
260 _aEnglewood Cliffs
_bPrentice Hall
_c1956
082 _a371.2
300 _c27.8cm
999 _c357345
_d357345
041 _aeng