01003cam a22002531 4500 gs 20000300 DLC 20260227111324.0 791024s1920 enka b 000 0 eng c gs 20000300 (OCoLC)5583758 U.S. Geol. Survey. Libr. OCl DLC premarc TN490.T9 R3 Rastall, Robert Heron, 1871- Tungsten ores, by R. H. Rastall and W. H. Wilcockson. London, J. Murray, 1920. ix, 81 p. diagrs. 22 cm. [Great Britain] Imperial institute [London] Monographs on mineral resources with special reference to the British empire Prepared under the direction of the Mineral resources committee with the assistance of the scientific and technical staff of the Imperial institute. "References to literature on tungsten": p. 77-81. Tungsten ores. Wilcockson, William Howson, joint author. 26019 26019