Helgren, David M. <br/><br/>
World geography today 
/ David M. Helgren, Robert J. Sager 
 - xviii, 662 pages :  color illustrations, color maps. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0030967953 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography--1945---Textbooks<br/>Geography--Textbooks
<br/><br/><label>Dewey Class. No.: </label>910