TY  - BOOK
AU  - Blackman,Derek
TI  - Operant conditioning: an experimental analysis of behaviour 
SN  - 0416136605 :
U1  - 150 
PY  - 1974///
CY  - London
PB  - Methuen
KW  - Operant conditioning
KW  - Behaviour modification
N1  - Includes bibliographical references and index
ER  -