TY  - RPRT
TI  - Determination of palladium, platinum and rhodium in geologic materials by fire assay and emission spectrography
AU  - J. Hapfty
AU  - L.B. Riley
PY  - 1968
DO  - 10.1016/0039-9140(68)80014-1
UR  - https://pubs.usgs.gov/publication/70011497
ID  - 70011497
ER  -