The Nature and function of scientific theories: essay in contemporary science and philosophy  edited by Robert G. Colodny. 

 - London  Henry M. Snyder  1970 
 - xv, 361p., 23cm. 
<br/><br/> Including Index. 
<br/><br/><label>ISBN: </label>08229-3211-3. 
<br/><br/><label>Dewey Class. No.: </label>501,  / N28N