Space research II:  proceedings of the second international space science symposium, Florence, April 10-14, 1961 

 - Amsterdam  North-Holland  1961 
 - xv,1241p. 
<br/><br/><label>Subjects--Index Terms: </label>Space 
<br/><br/><label>Dewey Class. No.: </label>629.408 2   / SPA'61