01210nam a2200253 i 4500000000283345CaOOAMICUS20031003192630.0031003s1969 xx 000 b eng cPUGita902 HHempel, Carl G.1905-1997.(OLS)http://pug/name/131309Fundamentals of concept formation in empirical science /Carl G. Hempel.Chicago ;London :University of Chicago Press,[1969]3-93 p. ;22,5 cmInternational encyclopedia of unified science, 1-2. Foundations of the unity of science ;002/7[10th impression].Filosofia della scienzaMetodologia.(OLS)http://pug/subject/27839International encyclopedia of unified science, 1-2. Foundations of the unity of science ;002/7.(OLS)http://pug/title/322945PUGPUG1Magazzino4Mag. 902 H 61310833 310833PUGBibl2310833 71 385 2[10th impression].084902 H(OLS)http://pug/classification/813245Fundamentals of concept formation in empirical science(OLS)http://pug/title/322944