TY  - RPRT
TI  - A spectrophotometric method for the determination of gold useful in mineral exploration
AU  - H. W. Lakin
AU  - H. M. Nakagawa
PY  - 1965
DO  - 10.3133/ofr65181
UR  - https://pubs.usgs.gov/publication/ofr65181
ID  - ofr65181
ER  -