TY  - BOOK
AU  - Hanson, Norwood Russell
TI  - Observation and explanation: a guide to philosophy of science
T2  - Essays in philosophy
SN  - 0041000358
AV  - Q 175 Han 
PY  - 1972///
CY  - London
PB  - Allen and Unwin
KW  - SCIENCE
KW  - fast
KW  - SCIENCE--PHILOSOPHY
KW  - PHILOSOPHY
ER  -