Richards John F <br/><br/>
Unending frontier    A environmental history of the    
Richards John F 
 - Berkeley  University of Calofornia Press         2003 
 - xiv,682p. Bib p. 623-660  cm. 
<br/><br/> California World History Library 
<br/><br/><label>ISBN: </label>0520230752 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human Geography
<br/><br/><label>Dewey Class. No.: </label>U475:(G:5).1.K, P3