The forging of our continent.
By: Consultant: William G. Melson.
Series: The Smithsonian library
Publisher: American Heritage Pub. Co.; distribution by Van Nostrand
Published: 1968
Place of publication: [New York]
Language: eng
Number of pages: 160
Subjects: Geology -- North America
Notes: Bibliography: p. 155.
Part of the illustrated matter is colored.