Edition |
Rev. ed. |
Description |
xv, 197 pages : illustrations (1 folded) ; 29 cm |
Bibliography |
Includes bibliographical references and index. |
Subject |
Geology -- North America.
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Geology. |
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North America. |
ISBN |
0691081956 : $25.00. 069102359X paperback $9.50 0691079609 |
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