TY  - BOOK
AU  - Commons Michaelt Ed
AU  -  Nevin John A. Ed.
TI  - Discriminative properties of reinforcement schedules
T2  - Quantitative analysis of behavior series , 1
U1  - SN1,9, M0 
PY  - 1981///
CY  - Cambridge
PB  - Ballinger Publishing Company 1981    
KW  - PSYCHOLOGY
ER  -