000 00287nam a22000857a 4500
008 210323b ||||| |||| 00| 0 eng d
050 _aLB1051 .B43 1971
245 _aAn empirical basis for change in education
_bselections on behavioral psychology for teachers
_cBECKER, WESLEY C.
942 _2lcc
999 _c3336
_d3336