Note 19 — Chapter VIII · THE ENERGY RESOURCES—COAL, OIL, GAS (AND ASPHALT)
Reading edition
Compiled from tables quoted by White, David, The petroleum resources of the world: Annals Am. Acad. Social and Political Sci., vol. 89, 1920, pp. 123 and 126.
Reading edition
Compiled from tables quoted by White, David, The petroleum resources of the world: Annals Am. Acad. Social and Political Sci., vol. 89, 1920, pp. 123 and 126.