Investigation of Douglas fluorite property, Pope County, Ill
Main Author: | Bishop, O. M. 1905- |
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Other Authors: | Needham, A. B. |
Format: | Book |
Language: | English |
Published: |
[Washington, D.C.] :
U.S. Dept. of the Interior, Bureau of Mines,
1949.
|
Physical Description: |
13 pages, 2 leaves of plates : maps ; 27 cm. |
Series: |
Report of investigations (United States. Bureau of Mines) ;
4434. |
Subjects: |