Goetz P.W. Ed. <br/><br/>
Encyclopaedia Britanica 

 - Chicago  Encyclopaedia Print        1987 
 - 948  cm. 
 -  12 .
<br/><br/><label>Standard No.: </label>80 
<br/><br/><label>Source: </label> Annuals, Advances 
<br/><br/><label>Dewey Class. No.: </label>K1,L68      m7.1-.29