Frege, Gottlob 1848-1925.
Frege and Gd̲el: two fundamental texts in mathematical logic /
edited by Jean Van Heijenoort 
. - Cambridge : Harvard University Press,  1970 
. - 116 p.  schem.  26 cm. 
<br/>К.: Бібліогр. : c. 111-116, Index 
<br/><label>  ISBN: </label>674-31845-5