Fisher, Ron. <br/><br/>
Heartland of a continent :  America's plains and prairies / 
by Ron Fisher. 
 - Washington, D.C. :  National Geographic Society,  c1991. 
 - 199 p. :  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Middle West--Geography.<br/>West (U.S.)--Geography.
<br/><br/><label>LC Class. No.: </label>F 595.3  / .F57