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softcover
ISBN 0-9668701-1-5 $24.95
Read
a review
Look
behind the cover
to
understand how ancient people made their most important
decisions about technology.
|

softcover
ISBN
978-0-9668701-2-1 $18.95
Look
behind the cover to
learn how people used the simplest of equipment to make
elegant tools from brittle stone.
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