TY  - RPRT
TI  - Contributions to economic geology, 1905: Introduction; Investigation of metalliferous ores; Investigation of iron ores and nonmetalliferous minerals; Gold and silver
AU  - C. W. Hayes
AU  - S. F. Emmons
AU  - E.C. Eckel
AU  - H. S. Gale
AU  - G. H. Garrey
AU  - D. F. MacDonald
AU  - S.H. Ball
AU  - Waldemar Lindgren
AU  - L. C. Graton
PY  - 1906
DO  - 10.3133/b285a
UR  - https://pubs.usgs.gov/publication/b285A
ID  - b285A
ER  -