Hempel, Carl G <br/><br/>
Philosophy of natural science 

 - Englewood Cliffs :  Prentice Hall,  1966 
 - 5.h.p., 116p.;  22,5 cm. 
 - Foundation of philosophy series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ciencia<br/>Filosofía
<br/><br/><label>Universal Decimal Class. No.: </label>5:1