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Walker, Colin, 1936-

A question of survival : technology through the ages / Colin Walker. - Richmond Hill, Ont. : Scholastic Canada, 1993. - 24 p. : ill. (some col.) ; 26 cm. - Science understandings . - Walker, Colin, 1936- Science understandings. .

Includes index.

0590748084


Technology--History--Juvenile literature.
Technologie--Histoire--Ouvrages pour la jeunesse.

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