Darrah, William C.  1909-1989. <br/><br/>
Powell of the Colorado / 
William C. Darrah, 
 - Princeton :  Princeton University Press,  1951. 
 - ix, 426 p. :  illus., ports. ;  25 cm. 
<br/><br/>Bibliography: p. [401]-412. and Index 
<br/><br/><label>Subjects--Personal Names: </label><br/>Powell, John Wesley, 1834-1902. 
<br/><br/><label>Dewey Class. No.: </label>925  / DAP 1951