Mathematics today: twelve informal essays  /
edited by Lynn Arthur Steen 
. - New York : Vintage books, a division of Random House,  1980 
. - 367 p.  ill.  20 cm. 
 - (Vintage works of science and psychology  ; V-503 )
<br/>К.: Бібліогр. в кінці статей, c. 355-357, Index 
<br/><label>  ISBN: </label>0-394-74503-5