Bender, Lionel. <br/><br/>
Telescopes / 
[by] Lionel Bender. 
 - New York :  Gloucester,  1991. 
 - 31 p. :  col. ill. ;  30 cm. 
 - How it works .
<br/><br/> Includes index. 
<br/><br/> Demonstrates how telescopes operate, from the simplest to the most complex and sophisticated. 
<br/><br/> 4-6. 
<br/><br/><label>ISBN: </label>0531172651 
<br/><br/><label>LCCN: </label>91007802 /AC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telescopes--Juvenile literature.<br/>Telescopes.
<br/><br/><label>LC Class. No.: </label>QB88  / .B46 1991 
<br/><br/><label>Dewey Class. No.: </label>522/.2