TY  - BOOK
AU  - Birney,Robert Charles
AU  -  Teevan,Richard Collier
TI  - Reinforcement: an enduring problem in psychology selected readings 
T2  - Insight books
U1  - 153.15 
PY  - 1961///
CY  - New York
PB  - Van Nostrand
KW  - Reinforcement (Psychology)
ER  -