000 00284nam a2200121Ia 4500
100 _aYauch Wilbur .A
942 _cBK
654 _a
245 _aHelping Teacher Understand Principals
260 _aNew York
_bAppleton-Century-Crofts
_c1957
082 _a371.1472
300 _c21.9 cm
999 _c413346
_d413346
041 _aeng