Goetzmann, William H. <br/><br/>
New lands, new men :  America and the second great age of discovery / 
William H. Goetzmann. 
 - New York :  Penguin Books,  1987. 
 - xii, 528 p., [4] p. of plates :  ill. ;  20 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. [461]-506. 
<br/><br/><label>ISBN: </label>0140097333 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Explorers--History.--United States<br/>Discoveries in geography.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--Territorial expansion.