Note 58 — Chapter XVIII · INTERNATIONAL ASPECTS OF MINERAL RESOURCES
Reading edition
Umpleby, Joseph B., Strategy of minerals—The position of the United States among the nations: D. Appleton and Co., New York, 1919, p. 286.
Reading edition
Umpleby, Joseph B., Strategy of minerals—The position of the United States among the nations: D. Appleton and Co., New York, 1919, p. 286.