"Natural gas : its production, service, and conservation. "; "Wyer, Samuel S., 1879-1955."; "Natural gas."; "Wyer, Samuel S., 1879-1955."; "1918"; "Serial issue. Issued as: Smithsonian Institution. Bulletin, 102:pt.7. At head of title: The Mineral industries of the United States.
"; ""; "P4204"; "pec"; "Natural gas."; "14256"; .