TY  - BOOK
AU  - Whaley,Donald L.
AU  - Malott,Richard W.
TI  - Elementary principles of behavior
SN  - 0132594994
U1  - 150 
PY  - 1971///]
CY  - Englewood Cliffs, N.J.
PB  - Prentice Hall, Inc.
KW  - Psychology
KW  - Operant behavior
N1  - Includes bibliographical references
ER  -