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Clark, Claire.

How long is a day? - Mankato, Minn. Capstone Press. 2/13/2012 - 24 p.

'Simple text and photos explain a day as a unit of time and the parts of a day' -- Publisher.

Includes index.

ISBN: 9781429675918 (lib. bdg.) 1429675918 (lib. bdg.) 9781429678971 (pbk.) 1429678976 (pbk.)

LCCN: 2011021344

Subjects--Topical Terms:
Day -- Juvenile literature.
Night -- Juvenile literature.
Earth -- Rotation -- Juvenile literature.
Time measurements -- Juvenile literature.