Shelton, William Roy. <br/><br/>
Man's conquest of space 
by William R. Shelton. Foreword by James E. Webb. 
 - Washington  National Geographic Society  [1968] 
 - 199 p.  illus., ports. (all part col.). 
<br/><br/> "Prepared by National Geographic Special Publications Division." 
<br/><br/>Bibliography: p. 199. 
<br/><br/><label>LCCN: </label>68028340 //r892 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronautics--Popular works.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Outer Space--Exploration.