TY  - BOOK
TI  - Scientific thought: some unlerlying concepts, methods and procedures: Scientific thought: some unlerlying concepts, methods and procedures
U1  - 501.09 
PY  - 1972///
CY  - Paris
PB  - Mouton
KW  - Science - Methodology
KW  - Science - Philosophy
KW  - Natural history
KW  - Civilization
ER  -