TY  - BOOK
AU  - Wertheimer,Max
TI  - Productive thinking: edied by Michael Wertheimer
AV  - BF203 .W45 1959
U1  - 153.6 
PY  - 1959///]
CY  - New York
PB  - Harper
KW  - Gestalt psychology
KW  - Local
KW  - Thought and thinking
N1  - Includes bibliography
ER  -