World book encyclopedia 

 - Chicago  Field Enterprises Educational Corp.       1960 
 - 20v.  cm. 
<br/><br/><label>Standard No.: </label>15976 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GENERALIA
<br/><br/><label>Dewey Class. No.: </label>k1,N66, K0.1-.21