TY  - BOOK
AU  - Nagel,Ernest
TI  - Structure of science: problems in the logic of scientific explanation
U1  - 501 NAG 
PY  - 1984///
CY  - New Delhi
PB  - Macmillan
KW  - Science
KW  - Philosophy
N1  - Gratis
N.Ramgopal
ER  -