000 00276nam a22001097a 4500
082 _a370.15
_bSKI
100 _aSkinner, Charles E Editor
245 _aEducational Psychology /
_cCharles E Skinner
250 _a4th ed
260 _aLondon
_bStaples Press
_c1961
942 _cBK
999 _c499702
_d499702