Goetzmann, William H. <br/><br/>
Exploration and empire :  the explorer and the scientist in the winning of the American West / 
by William H. Goetzmann 
 - New York :  Alfred A. Knopf,  1967 
 - xxii, 656, xviii p. :  ill. ;  24 cm. 
<br/><br/> Includes bibliographical references and indexes 
<br/><br/><label>LCCN: </label>65-11123 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>West (U.S.)--Discovery and exploration