World book encyclopedia  
/ Field Enterprises Educational Corporation, volume 2, B 
 - Chicago:   Field Enterprises Educational Corporation,   1966 
 - 638p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedia 
<br/><br/><label>Subjects--Index Terms: </label>Education  
<br/><br/><label>Universal Decimal Class. No.: </label>R 030.1   / K4.2