Silver deposits at Kongsberg (the mineral assemblage of a native silver-cobat-nickel ore type) Neumann, Henrich. creator text bibliography no Oslo I kommisjon hos H. Aschehoug & co. 1944 monographic eng
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133 p. incl. illus., maps, tables, diagrs. VIII pl. on 4 l. 24 cm. by Henrich Neumann. At head of title: Norges geologiske undersökelse. "Literature": p. 129-133. Silver ores Norway Kongsberg Silver QE281 .A2 nr. 162 554.81 s Norway. Geologiske undersøkelse. [Skrifter] nr. 162 gs 46000093 U.S. Geol. survey. Library 800107 20260227111351.0 gs 46000093