World civilizations : their history and their culture 
Ralph, Philip Lee. 
 - ninth edition. 
 -  W. W. Norton & Company, Inc.  1997 
 - xv, 813 pages (A39) 
<br/><br/>
<br/><br/><label>ISBN: </label>0-393-96880-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civilization -- History.
<br/><br/><label>Dewey Class. No.: </label>909 W89 1997