TY  - BOOK
AU  - Crawshay Williams Rupert
TI  - Methods and criteria of reasoning :  an inquiry into structure of controversy
T2  - International  library of psychology philosophy and scientific method
U1  - R17, J7 (PD) 
PY  - 1957///
CY  - London
PB  - Routledge       
KW  - PHILOSOPHY
ER  -