TY  - RPRT
TI  - Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Sulphur and Pyrite
AU  - E. G. Woodruff
PY  - 1909
DO  - 10.3133/b380m
UR  - https://pubs.usgs.gov/publication/b380M
ID  - b380M
ER  -