Billingto, Ray Allen.  <br/><br/>
Westward expansion a history of the American frontier / 
Ray Allen Billingto. 
 - New York :  Macmillan,  c 1957. 
 - 873 p. :  ill. ;   24 cm. 
<br/><br/> Includes index.  Bibliography : P. (757-834). 
<br/><br/>340  340 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History--America.
<br/><br/><label>Dewey Class. No.: </label>973 / B496w