TY  - RPRT
TI  - Primary distribution of silver and copper in native gold from six deposits in the Western United States
AU  - G. A. Desborough
AU  - Robert H. Heidel
AU  - W. H. Raymond
AU  - J. Tripp
PY  - 1971
DO  - 10.1007/bf00201890
UR  - https://pubs.usgs.gov/publication/70001516
ID  - 70001516
ER  -