TY  - RPRT
TI  - Determination of gold in waters in the nanogram range by anion exchange and atomic absorption spectrophotometry
AU  - T. T. Chao
PY  - 1969
DO  - 10.2113/gsecongeo.64.3.287
UR  - https://pubs.usgs.gov/publication/70223814
ID  - 70223814
ER  -