Russell, Bertrand <br/><br/>
La perspectiva científica.  traducida por G. Sans Huelin 
Bertrand Russell. 
 - [3d ed.] 
 - Barcelona  Ediciones Ariel  1971. 
 - 221 p. 
<br/><br/>Include Bibliography foot notes and index. 
<br/><br/><label>LCCN: </label>31025032  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science<br/>Civilization
<br/><br/><label>LC Class. No.: </label>Q158  / .R8