000 00275nam a22000857a 4500
999 _c324762
_d324762
082 _a371.1
_bBID/C
245 _aContemporary research on teacher effectiveness/
_cedited by Bruce J Biddle, William J Ellena
260 _aNew York:
_bHolt, Rinchart and Winston,
_c1964.
942 _cBK