TY  - BOOK
AU  - Nagel, Ernest,
TI  - The structure of science: problems in the logic of scientific explanation 
SN  - 0710018827
U1  - 501 
PY  - 1971///, 1984
CY  - London
PB  - Routledge & Kegan Paul
KW  - Science-Philosophy.--
ER  -