The Online Books Page

Books by P. L. Cottingham:

Books in the extended shelves:

• Cottingham, P. L.: Hydrocracking low-temperature tar from a North Dakota lignite (U.S. Dept. of the Interior, Bureau of Mines, 1963), also by W. W. Fowkes, C. M. Frost, H. C. Carpenter, University of Wyoming, and United States Bureau of Mines (page images at HathiTrust)
• Cottingham, P. L.: Hydrodesulfurization of Venezuelan residual fuel oils (U.S. Dept. of Interior, Bureau of Mines, 1971), also by C. M. Frost, Laramie Energy Research Center (U.S.), University of Wyoming, and United States Bureau of Mines (page images at HathiTrust)
• Cottingham, P. L.: Hydrogenating shale oil and catalytic cracking of hydrogenated stocks (U.S. Dept. of the Interior, Bureau of Mines, 1960), also by S. S. Tihen, C. B. Hopkins, H. C. Carpenter, and Clyde M. Frost (page images at HathiTrust)
• Cottingham, P. L.: Hydrogenating shale oil at low space velocity (U.S. Dept. of Interior, Bureau of Mines, 1973), also by C. M. Frost, United States Bureau of Mines, and University of Wyoming (page images at HathiTrust)
• Cottingham, P. L.: Refining improvement of shale-oil naphtha (U.S. Dept. of Interior, Bureau of Mines, 1973), also by Lawrence K. Barker and University of Wyoming (page images at HathiTrust)
• Cottingham, P. L.: A survey of methods for desulfurizing residual fuel oil (Washington, D.C. : United States, Department of the Interior, Bureau of Mines, 1963., 1963), also by H. C. Carpenter and United States Bureau of Mines (page images at HathiTrust)

Find more by P. L. Cottingham at your library, or elsewhere.