TY  - RPRT
TI  - Contributions to economic geology, 1906, Part I, Metals and nonmetals except fuels--Mica, Graphite
AU  - D.B. Sterrett
AU  - Sydney Hobart Ball
PY  - 1907
DO  - 10.3133/b315m
UR  - https://pubs.usgs.gov/publication/b315M
ID  - b315M
ER  -