Asimov, Isaac,  1920-1992. <br/><br/>
How did we find out about Neptune? / 
Isaac Asimov ; illustrated by Erika Kors. 
 - New York :  Walker,  1990. 
 - 59 p. :  ill ;  22 cm. 
 - How did we find out ...? series .
 - Asimov, Isaac,  1920-1992.  How did we find out--series. .
<br/><br/> Includes index. 
<br/><br/> School Library Journal.  Voice of Youth Advocates (V.O.Y.A.). 
<br/><br/> An account of astronomers' observations over the years leading to the discovery of Neptune's existence. 
<br/><br/> 7.3  Follett Library Book Co.  7.3  Follett Library Resources.  5-8.  5-8  Follett Library Resources. 
<br/><br/><label>ISBN: </label>0802769810 (trade) :  $12.95 0802769829 (lib. bdg.) 
<br/><br/><label>LCCN: </label>90038771 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Neptune (Planet)--Juvenile literature.<br/>Neptune (Planet)<br/>Neptune (Planet)
<br/><br/><label>LC Class. No.: </label>QB691  / .A84 1990 
<br/><br/><label>Dewey Class. No.: </label>523.4/81