Encyclopedia of American history / 
edited by Richard B. Morris 
 - Enl. and updated. 
 - New York :  Harper & Row,  1970 
 - xiv, 850 p. :  ill., maps. ;  25 cm. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--History--Chronology<br/>United States--History--Dictionaries