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Describes the life and work of Eratosthenes, the Greek geographer and astronomer who accurately measured the circumference of the Earth.

The Librarian Who Measured the Earth 2000, Houghton Mifflin

ISBN-13: 9780618062829

Trade paperback

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The Librarian Who Measured the Earth 1994, Little, Brown Books for Young Readers, New York, NY

ISBN-13: 9780316515269

Hardcover

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