Academic American encyclopedia 

 - Princeton  Aret Publishing        1981 
 -  V1 .
<br/><br/><label>Standard No.: </label>2846 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GENERALIA
<br/><br/><label>Dewey Class. No.: </label>k73,N81, M1.1-20 bM1.21(RR)