TY  - RPRT
TI  - Contributions to economic geology (short papers and preliminary reports), 1911, Part I, Metals and nonmetals except fuels
AU  - Waldemar Lindgren
PY  - 1913
DO  - 10.3133/b530
UR  - https://pubs.usgs.gov/publication/b530
ID  - b530
ER  -