Thinkers of the twentieth century  A biographical bibliographical and critical dictionary / 
E, Devine  et al 
 - London  Macmillan publishers  1983 
 - ix, 643p,   hbk 
<br/><br/><label>ISBN: </label>0333336348 
<br/><br/><label>LC Class. No.: </label>B804.AI.T5 1983