Observatories on Earth. 

 - Chicago :  World Book,  c2010. 
 - 64 p. :  ill. (chiefly col.), col. maps ;  27 cm. 
 - Explore the universe .
 - Explore the universe. .
<br/><br/>Includes bibliographical references (p. 62) and index. 
<br/><br/> "An introduction to observatories on Earth with information about their history and use. Includes diagrams, fun facts, glossary, resource list, and index"--Provided by publisher. 
<br/><br/><label>ISBN: </label>0716695537 9780716695530 
<br/><br/><label>LCCN: </label>2009042608 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomical observatories--Juvenile literature.<br/>Telescopes--Juvenile literature.
<br/><br/><label>LC Class. No.: </label>QB81  / .O2665 2010 
<br/><br/><label>Dewey Class. No.: </label>522/.1