TY  - BOOK
AU  - Birney,Robert C.
AU  - Teevan,Richard Collier
TI  - Reinforcement: an enduring problem in psychology; selected readings 
T2  - An Insight book, 
AV  - BF319 REI 
PY  - 1961///
PB  - Van Nostrand
KW  - Reinforcement (Psychology)
ER  -