Plotinus..
Enneads : in 7 volumes. Volume VII.. VI. 6-9. /
with an English translation by A.H. Armstrong 
. - Cambridge  : Harvard University Press ; London : William Heinemann Ltd.,  1988 
. - XII, 346, 8 p.  17 cm. 
 - ((The Loeb classical library ; 468) )
<br/><label>  ISBN: </label>0-674-99515-5