Additions to the flora of the Green river formation / by Roland W. Brown.
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| Main Author: | |
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
Govt. Print. Off,
1929.
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| Series: | Professional paper (Geological Survey (U.S.)) ;
no. 154-J. Shorter contributions to general geology ; 1928. |
| Subjects: |