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Aug 1, 1999

Cover of Science Voyages

Science Voyages

Apr 1, 1994

Cover of Earth Science

Jun 1, 1992

Cover of Student Edition: SE Mrl Earth Science

Student Edition: SE Mrl Earth Science

Dec 31, 1990

Cover of Science Connections (Blue Book)

Science Connections (Blue Book)

Dec 1, 1990

Cover of Science Connections (Red Book)

Science Connections (Red Book)