The Online Books Page

Books by Walden P. Pratt:

Books in the extended shelves:

• Pratt, Walden P.: Background information to accompany folio of geologic and mineral-resource maps of the Rolla 1⁰ x 2⁰ quadrangle, Missouri (U.S. G.P.O. ;, 1991), also by Geological Survey (U.S.), Missouri. Division of Geology and Land Survey, and Conterminous United States Mineral-Resource Assessment Program (page images at HathiTrust)
• Pratt, Walden P.: Mineral-resource appraisal of the Rolla 1⁰ X 2⁰ quadrangle, Missouri, as of September 1980 : a nontechnical summary (U.S. Dept. of the Interior, Geological Survey ;, 1983), also by Geological Survey (U.S.) and Missouri. Division of Geology and Land Survey (page images at HathiTrust)
• Pratt, Walden P.: Mineral-resource potential of the mid-continent : program and abstracts : St. Louis, Missouri, April 11-12, 1989 (Dept. of the Interior, U.S. Geological Survey :, 1990), also by Martin B. Goldhaber, Missouri. Geological Survey, and Geological Survey (U.S.) (page images at HathiTrust)
• Pratt, Walden P.: Mineral resources: potentials and problems (U.S. Geological Survey], 1974), also by Donald Albert Brobst (page images at HathiTrust)

Find more by Walden P. Pratt at your library, or elsewhere.