Lasky, Kathryn. <br/><br/>
The Librarian who measured the earth  
Kathryn Lasky ; illustrated by Kevin Hawkes. 
 - 1st ed 
 - Boston :  Little, Brown,  c1994. 
 - 48 p. :  col. ill. ;  29 cm. 
<br/><br/>Includes bibliographical references (p. 48) 
<br/><br/> Describes the life and work of Eratosthenes, the Greek geographer and astronomer who accurately measured the circumference of the Earth. 
<br/><br/> AD 840  Lexile. 
<br/><br/>
<br/><br/><label>ISBN: </label>0316515264 :  $16.95 (20.95 in Canada) 
<br/><br/><label>LCCN: </label>92042656 
<br/><br/><label>Subjects--Personal Names: </label><br/>Eratosthenes--Juvenile literature.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy, Greek--Juvenile literature.<br/>Geography, Ancient--Juvenile literature.<br/>Astronomers--Greece--Juvenile literature.<br/>Geographers--Juvenile literature.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Earth--Juvenile literature.
<br/><br/><label>Dewey Class. No.: </label>520/.92  B