TY  - RPRT
TI  - Bibliography of the metals of the platinum group: Platinum, palladium, iridium, rhodium, osmium, ruthenium, 1748-1917
AU  - James Lewis Howe
AU  - Hendrick Coenraad Holtz
PY  - 1919
DO  - 10.3133/b694
UR  - https://pubs.usgs.gov/publication/b694
ID  - b694
ER  -