Cicero, Marcus Tullius, <br/><br/>
De natura deorum  academica 
with an English translation by H. Rackham. 
 - Cambridge, Mass.  Harvard University Press  1951. 
 - xix, 663 p.  17 cm. 
 - The Loeb classical library. [Latin authors] .
<br/><br/> Latin and English on opposite pages.