Note 29 — Chapter VIII · THE ENERGY RESOURCES—COAL, OIL, GAS (AND ASPHALT)
Reading edition
Arnold, Ralph, Conservation of the oil and gas resources of the Americas: Econ. Geol., vol. 11, 1916, pp. 321-322.
Reading edition
Arnold, Ralph, Conservation of the oil and gas resources of the Americas: Econ. Geol., vol. 11, 1916, pp. 321-322.