TY - BOOK AU - Malott,Richard W. AU - Whaley,Donald L. AU - Malott,Maria E. TI - Elementary principles of behavior SN - 013533571X U1 - 150 PY - 1997/// CY - Upper Saddle River, N.J. PB - Prentice Hall KW - Operant behavior KW - Psychology N1 - Includes bibliographical references and indexes ER -