1872-1970 <br/><br/>
New hopes for a changing world / 
Bertrand Russell 
 - 3a edición 
 - London :   George allen and unwin Ltd,   1960 
 - 218 p. ;  19 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Problemas sociales
<br/><br/><label>LC Class. No.: </label>HN18  / R87 1960