Fundamentals of physical geography / 
James F. Petersen, Dorothy Sack, Robert E. Gabler. 
 - USA :  Cengage Learning,  c2011. 
 - 479 pages :  ill. (some col.) ;  28 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780538736589 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geography.