TY  - BOOK
AU  - Whaley,Donald L.
AU  - Malott,Richard W.
TI  - Elementary principles of behavior
SN  - 0390932418
AV  - BF199 .W52
U1  - 150 
PY  - 1971///
CY  - New York
PB  - Appleton-Century-Crofts
KW  - Psychology
KW  - Operant behavior
N1  - Includes bibliographical references
ER  -