Our dynamic Earth. [motion picture] / National Geographic Society.
Material type:
FilmPublication details: Washington : The Society, c1979.Description: 1 reel, 23 min. : sd.,col. ; 16 mm. & teacher's guideSubject(s): LOC classification: - QE511.5
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Also issued as videorecording.
Examines information about continental drift gathered from deep sea research.
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