TY  - BOOK
AU  - Humphrey,George
TI  - The nature of learning: in its relation to the living system 
T2  - Cognitive psychology
SN  - 0415209595
U1  - 153 
PY  - 1933///
CY  - London
PB  - Routledge
KW  - Cognitive psychology
KW  - Learning, Psychology of
N1  - Includes bibliographical references and index
ER  -