TY  - RPRT
TI  - Determination of gold in geologic materials by solvent extraction and atomic-absorption spectrometry
AU  - Claude Huffman
AU  - J.D. Mensik
AU  - L.B. Riley
PY  - 1967
DO  - 10.3133/cir544
UR  - https://pubs.usgs.gov/publication/cir544
ID  - cir544
ER  -