The earth
Subtitle: its shape, internal structure and composition ; The earth's magnetic field
By: prepared by the Science Foundation Course Team.
Series: Science foundation course -- units 22 and 23.
Publisher: Open University Press
Published: 1972
Place of publication: [Bletchley, Eng.]
Language: eng
Number of pages: 119
Subjects: Earth.
Other titles: Earth's magnetic field.
Notes: First published 1971.

Includes bibliographical references.