Earth science (Teacher's ed.).
Cita Chicago Style (17a ed.)Earth Science. Teacher's ed.
Cita MLA (9a ed.)Earth Science. Teacher's ed.
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Cita APA (7a ed.)
Earth science (Teacher's ed.).
Cita Chicago Style (17a ed.)Earth Science. Teacher's ed.
Cita MLA (9a ed.)Earth Science. Teacher's ed.