Kenny, Anthony.
Frege: an introduction to the founder of modern analytic philosophy /
Anthony Kenny 
. - London : Penguin books,  1995 
. - x, 222 p.  20 cm. 
 - (Penguin philosophy )
<br/><label>  ISBN: </label>0-14-012550-7 
<br/><br/><label>Subjects--Personal Names: </label><br/>Frege, Gottlob 1848-1925