TY  - BOOK
AU  - Skinner, B. F. 
TI  - Beyond freedom and dignity 
SN  - 0140216618
U1  - 150.1943 
PY  - 1973///
CY  - Harmondsworth 
PB  - Penguin Books 
KW  - Psychology
KW  - Behaviorism (Psychology)
ER  -