Our Natural History :  The Lessons of lewis and Clark / 
Botkin, Daniel B. 
 - New York:  The Berkley Publishing Group,  c 1995 
 - xix,300 pages  21 cm. 
<br/><br/><label>ISBN: </label>9 780399 5224 
<br/><br/><label>Subjects--Topical Terms: </label>--history
<br/><br/><label>Dewey Class. No.: </label>508.78 BOT