Ambrose, Stephen E. <br/><br/>
Undaunted courage :  Meriwether Lewis, Thomas Jefferson, and the opening of the American West / 
Stephen E. Ambrose. 
 - 521 p. :  ill., maps ;  25 cm. 
<br/><br/> "A Touchstone book" 
<br/><br/>
<br/><br/><label>ISBN: </label>0684826976 
<br/><br/><label>Subjects--Personal Names: </label><br/>Jefferson, Thomas, 1743-1826 <br/>Lewis, Meriwether, 1774-1809 <br/>Clark, William, 1770-1838 
<br/><br/><label>Subjects--Meeting Names: </label><br/>Lewis and Clark Expedition (1804-1806) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Explorers--United States--Biography<br/>Kaşifler--Amerika Birleşik Devletleri--Biyografi
<br/><br/><label>LC Class. No.: </label>F592.7  / .A49 1997