TY  - BOOK
AU  - Glaser,Robert
ED  - Academic Press
TI  - The nature of reinforcement ; edited by Robert Glaser
U1  - 153.1534  22
PY  - 1971///.
CY  - New York: 
PB  - Academic Press, 
KW  - Motivation in education
KW  - Reinforcement (Psychology)
ER  -