TY  - BOOK
AU  - Kordig Carl R
TI  - Justification of scientific change
T2  - Synthese library ed by Jaakko Hintikla; 36
U1  - R193, L1 
PY  - 1971///
CY  - Boston
PB  - D Reidel      
N1  - Bib 116-19p
ER  -