TY  - BOOK
AU  - Skinner,B.F.
TI  - Verbal behavior
T2  - The Century psychology series
AV  - BF455 .S53
U1  - 153.6 SKI 
PY  - 1957///]
CY  - New York
PB  - Appleton-Century-Crofts
KW  - Verbal behavior
ER  -