Essentials of physical geography / 
Robert E. Gabler and others. 
 - 3rd ed. 
 - Philadelphia :  Saunders College Publishing,  1986. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0030089581 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geography -- Textbooks--Physical geography -- Textbooks
<br/><br/><label>LC Class. No.: </label>GB54.5  / Phy 1986