Note 38 — Chapter III · IRON By E. C. Harder and F. T. Eddingfield
Reading edition
Eckel, E. C.: “Iron Ores, Their Occurrence, Valuation and Control,” 1914, p. 326.
Reading edition
Eckel, E. C.: “Iron Ores, Their Occurrence, Valuation and Control,” 1914, p. 326.