Geography in America :  Gary L. Gaile, Cort J. Willmott. 

 - Columbus :  Merrill Pub,  c1989. 
 - xliv, 840 p. 
<br/><br/> Includes references and indices. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography--Study and teaching--U.S.