How did we find out the earth is round?

Discusses the theories that led to the discovery that the earth was round.

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Bibliographic Details
Main Author:	Asimov, Isaac 1920-
Other Authors:	Kalmenoff, Matthew
Format:	Book
Published:	London Lion 1976
Series:	His How did we find out ... series
Subjects:	Earth > Figure > Juvenile literature Earth
Online Access:	Click Here to View Status and Holdings.
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