TY  - RPRT
TI  - Eighteenth annual report of the United States Geological Survey to the Secretary of the Interior, 1896-1897: Part III - Economic geology
AU  - G. F. Becker
AU  - J. E. Spurr
AU  - H. B. Goodrich
AU  - Bailey Willis
AU  - W. H. Weed
AU  - Louis Valentine Pirsson
AU  - Waldemar Lindgren
AU  - F. H. Knowlton
AU  - Chester Wells Purington
PY  - 1897
DO  - 10.3133/ar18_3
UR  - https://pubs.usgs.gov/publication/ar18_3
ID  - ar18_3
ER  -