TY  - RPRT
TI  - Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Asphalt
AU  - Robert Anderson
AU  - J. A. Taff
PY  - 1909
DO  - 10.3133/b380h
UR  - https://pubs.usgs.gov/publication/b380H
ID  - b380H
ER  -