Transactions of the third world congress of sociology/ 

 - London :  as author,  1956. 
 - 160p0: 
<br/><br/> Problems of  social change in the 20th century  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology<br/>Social change
<br/><br/><label>Dewey Class. No.: </label>301.24  / INT N56T