000 00297nam a2200121Ia 4500
008 220216s9999 xx 000 0 und d
100 _aWatson J W
245 0 _aChemical aspects of reinforcement
260 _bIRI Transactions
_c1956
300 _a204-217
650 _aReinforcement
942 _cJS
999 _c55480
_d55480