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9by Brown, F. Martin (Frederick Martin), 1903-1993Subjects: “...Earth sciences....”
Published 1979
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10Published 1979Subjects: “...Earth sciences Juvenile literature....”
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18by Feather, Ralph M.Table of Contents: “...Foundations of earth science: Nature of science; Matter and its changes -- Rocks and minerals...”
Published 1995
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19by Cox, Shirley, 1953-Subjects: “...Earth sciences Experiments Juvenile literature....”
Published 1992
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