TY  - BOOK
AU  - Skinner,B.F.
TI  - Upon further reflection
T2  - Century psychology series
SN  - 0139389865
PY  - 1987///.
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Psychology, Experimental
KW  - Addresses, essays, lectures
KW  - Human behavior
ER  -