More about E. L. Burwell:
| | Books by E. L. Burwell: Books in the extended shelves: Burwell, E. L.: Underground coal conversion : program description (Washington, D. C. : Dept. of Energy, Assistant Secretary of Energy Technology, Division of Fossil Fuel Extraction, 1979., 1979), also by C. W. Draffin, L. C. Bartel, B. E. Bader, D. R. Stephens, W. Noll, J. W. Martin, T. C. Bartke, C. F. Brandenburg, S. H. Zukor, and United States. Department of Energy. Division of Fossil Fuel Extraction (page images at HathiTrust) Burwell, E. L.: Underground combustion oil-recovery experiments in the Venango Second Sand, Reno Pool, Venango County, Pa. (U.S. Dept. of the Interior, Bureau of Mines, 1967), also by L. L. Core, T. E. Sterner, George G. Campbell, Quaker State Oil Refining Corporation, and United States Bureau of Mines (page images at HathiTrust)
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