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