Hughes, Patrick 1939-.
Vicious circles and infinity: an anthology of paradoxes /
Patrick Hughes and George Brecht 
. - Harmondsworth : Penguin books,  1979 
. - xi, 84 p.  ill.  18 cm. 
<br/>К.: Бібліогр. : c. 79-82 
<br/><label>  ISBN: </label>0-14-00-4557-0