TY  - RPRT
TI  - Contributions to economic geology, 1906, Part I, Metals and nonmetals except fuels--Gypsum, Plasters
AU  - Millard King Shaler
PY  - 1907
DO  - 10.3133/b315h
UR  - https://pubs.usgs.gov/publication/b315H
ID  - b315H
ER  -