TY  - BOOK
AU  - Negal,Ernest .
TI  - The structure of science : problems in the logic of scientific explanation / 
SN  - 0710005458
U1  - 501 
PY  - 1979///
CY  - London : 
PB  - Routledge & Kegan Paul , 
KW  - SCIENCE - STRUCTURE
N1  - Includes index
ER  -