Hempel, Carl G.  1905-1997 <br/><br/>
Fundamentals of concept formation in empirical science. /  V-2 
by Hempel, Carl G. 
 - Chicago :  University of Chicago Press,  1952 [impression 1962]. 
 - iii, 93 p. :  25 cm. 
 - International encyclopedia of unified science. Foundations of the unity of science,  v. 2, no. 7 .
 -  v. 2, no. 7. International encyclopedia of unified science ; .
<br/><br/>Bibliography: p. 88-93. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Philosophy.<br/>Science
<br/><br/><label>Dewey Class. No.: </label>501  / HAF 1962