TY  - BOOK
AU  - Wertheimer,Max
AU  - Wertheimer, Michael ed.
TI  - Productive thinking
U1  - 153.43 
PY  - 1959///
CY  - New York
PB  - Harper & brothers
KW  - Thought and thinking
KW  - Problem solving
KW  - Indian Psychology
N1  - Reprint of the enl. ed. published by Harper, New York; Includes index; Bibliography: p. 294-296
ER  -