Distribution of the Middle Ordovician Copenhagen formation and its trilobites in Nevada /
| Main Authors: | , |
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. Govt. Print. Off,
1972.
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| Series: | Geological Survey professional paper ;
749. |
| Subjects: |
| Physical Description: | iii, 33 pages, 17 unnumbered pages : illustrations ; 30 cm. |
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| Bibliography: | Bibliography: pages 29-30. |