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Geology,
by Boyer, Robert Ernst,
Publication:
Northbrook, Ill., Hubbard Press 1972
. 48 p.
27 cm.
Date:1972
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(1),
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Earth time /
by Williams, Brian,
Publication:
Mankato, MN : Smart Apple Media, 2002
. 32 p. :
, Includes index.
27 cm.
Date:2002
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Rocks & minerals /
by Berger, Melvin.
Publication:
New York : Scholastic, 2010
. 46 p. :
, Includes index.
23 cm.
Date:2010
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(3),
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