http://pec.lib.wvu.edu/record/P21081940Conservation of capital and natural resources: address of John J. D. Preston, Chairman, Public Service Commission of West Virginia, before the West Virginia Oil and Natural Gas Association, Charleston, West Virginia, October 3, 1940.Typescript.Preston, John J. Davis, 1892-Conservation of natural resources--West Virginia.Petroleum--West Virginia.Natural gas--West Virginia.14256