Man's role in changing the face of the earth / 
edited by William L. Thomas ; with the collaboration of Carl O. Sauer, Marston Bates, Lewis Mumford 
 - 1193 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0226796035 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human geography--Congresses.