University of Illinois Urbana-Champaign

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Showing 5221–5250 of 8,363 items
Thumbnail for Geology and geography of the Galena and Elizabeth Quadrangles.
Geology and geography of the Galena and Elizabeth Quadrangles.
Trowbridge, Arthur C.; Shaw, Eugene Wesley; Schockel, Bernard Henry

Thumbnail for Abundance of trace and minor elements in organic and mineral fractions of coal
Abundance of trace and minor elements in organic and mineral fractions of coal
Kuhn, John K.; Fiene, F.L.; Cahill, R.A.; Gluskoter, H.J.; Shimp, N.F.