History of humanity :  Scientific and Cultural Development volume VII, the Twentieth Century / 
edited by Sarvepalli Gopal and Sergei L . Tikhvinsky 
 - Paris  :  UNESCO Publications,  2008 
 - V. :  ill., maps ;  30 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humanities-- History