000 00317nam a2200133Ia 4500
008 230108s9999 xx 000 0 und d
100 _aWalker EL
245 0 _aConditioning and Instrumental Learning
260 _bPrentice-Hall of India
260 _c1969
365 _b8.00
650 _aExtension
942 _cBK
999 _c239654
_d239654