"Agreement on the rescue of astronauts, the return of astronauts and the return of objects launched into outer space, London, Moscow and Washington, 22 April 1968" 

 - H.M.S.O.  "Treaties, etc. (Treaty series) ; 1969, no. 56"  c1969 
 - 39 p. 25 cm. 
<br/><br/><label>ISBN: </label>101399707