TY  - BOOK
AU  - Wason,P.C.
AU  - Johnson-Laird,P.N.
TI  - Thinking and reasoning: selected readings 
PY  - 1968///
CY  - Harmondsworth
PB  - Penguin
KW  - Problem solving
KW  - Reasoning
KW  - Thought and thinking
N1  - Includes bibliographies
ER  -