Cousins, Norman.
The improbable triumvirate: John F. Kennedy, Pope John, Nikita Khrushchev /
Norman Cousins 
. - New York : W.W. Norton & Company, Inc.,  1972 
. - 171 p.  21 cm. 
<br/><label>  ISBN: </label>0-393-05396-2 
<br/><br/><label>Subjects--Personal Names: </label><br/>Kennedy, John Fitzgerald 1917-1963 <br/>John XXIII  Pope  1881-1963 <br/>Khrushchev, Nikita Sergeevich 1894-1971