World book dictionary 
/ Doubleday & Company, Inc., 
 - USA:     Doubleday & Company, Inc.,      1976 
 - 1166p. 
<br/><br/> Vol.1 A-K<br/>Vol.2 L-Z 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social science
<br/><br/><label>Universal Decimal Class. No.: </label>R 030.8  / L6.1