Mandel, Ernest. <br/><br/>
Fifty years of world revolution :  an international symposium / 
(tr. by Gerald Paul). 
 - [New York :  Merit Publishers,  1971] 
<br/><br/> First published in 1968. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communism.<br/>Revolutions.