Lauber, Patricia, <br/><br/>
How we learned the earth is round /by Patricia Lauber ; illustrated by Megan Lloyd. 

 - first Harper Trophy edition. 
 - [New York] :  HarperTrophy,  (c)1992. 
 - 32 pages :  illustrations ;  18 x 23 cm. 
 - Let's-read-and-find-out science book .
<br/><br/> Explains various changes in humanity's beliefs about the shape of the earth, from the flat earth theories of the ancients to the round earth theories which were proven true by the voyages of Columbus and Magellan. 
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<br/><br/><label>ISBN: </label>9780064451093 
<br/><br/><label>LC Class. No.: </label>QB286  / .H699 1992 QB286