Proceedings of symposium on erosion surfaces held at Ranchi on 10-13 December 1968 :  21st international geographical congress / 
edited by Enayat Ahmed [and] Sivaprasad Das Gupta 
 - Calcutta :  National Committee for Geography,  1970 
 - vii, 70 p., 13 plates :  ill., charts, graphs, maps ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Erosion<br/>Physical geography
<br/><br/><label>Dewey Class. No.: </label>551.3082