Nagel, Ernest,  1901- <br/><br/>
The structure of science :  Problems in the logic of scientific explanation / 
Ernest Nagel. 
 - London :  Routledge & Kegan Paul,  [1961]. 
 - 618 p. ;  22 cm. 
<br/><br/>Includes bibliogr. references 
<br/><br/><label>ISBN: </label>0710005458 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Philosophy