Crompton, Samuel Willard, <br/><br/>
Sputnik/Explorer 1 : 

 -  Chelsea House Publications,  2007. 
<br/><br/><label>ISBN: </label>9780791093573 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronautics.
<br/><br/><label>Dewey Class. No.: </label>629.4  / CRO