Encyclopedia of the United States :  in the twentieth century / 
Stanley I. Kutler, editor 
 - New York :  Charles Scribner's Sons,  1996       
 - 4 v. 
<br/><br/>v.1: The American people; Politics. -- v.2: Global America; Science, Technology, and Medicine. -- v.3: The Economy. -- v.4: Culture; Index 
<br/><br/><label>ISBN: </label>0132105357 
<br/><br/><label>LC Class. No.: </label>R E 740.7 E56 1996