Note 5 — Chapter I · PLATINUM METALS: THEIR OCCURRENCES, CHARACTERS AND USES
Reading edition
Lindgren, W.: “Platinum and Allied Metals,” U.S. Geol. Surv., Min. Res. of U.S., 1910.
Reading edition
Lindgren, W.: “Platinum and Allied Metals,” U.S. Geol. Surv., Min. Res. of U.S., 1910.