Cicero..
Cicero's letters to Atticus /
traslated with an introduction by D.R. Shackleton Bailey 
. - Harmondsworth  : Penguin Books,  1978 
. - 736 p. : map  18 cm. 
 - ((Penguin classics) )
<br/><label>  ISBN: </label>0-14-044.309-6