Ferris, Timothy.
The red limit: the search for the edge of the universe /
by Timothy Ferris ; introduction by Carl Sagan 
. - New York : Bantam Books,  1979 
. - xiv, 204  p.  ill.  17 cm. 
 - (A Bantam Book  ; 11431-X )
<br/><label>  ISBN: </label>0-553-11431-X