000 00265nam a2200109Ia 4500
008 160710s1966 xx 000 0 und d
100 _aFOX, ROBERT
245 _aCLASSROOM LEARNING ENVIRONMENT
260 _bSCIENCE RESEARCH
_c1966
300 _a131
942 _2ddc
_cB
999 _c43847
_d43847