Velayudhan, P S <br/><br/>
Human progress and civilization 

 -  S Viswanathan Printers and Publishers, Madras 
 - 215 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civilizations; History of man; Philosophy of general history
<br/><br/><label>Dewey Class. No.: </label>901.9  VEL-H