Moore, Patrick. <br/><br/>
Explorers of Space :  The story of the people who charted the heavens and the discoveries they made / 
Patrick Moore. 
 - London :  Mitchell,  1986. 
 - 120 p.  28 cm. 
<br/><br/><label>ISBN: </label>0861340922 
<br/><br/><label>LC Class. No.: </label>BD632