A Preliminary Report on the Peat Resources of Iowa and a Report Onthe Tests of Iowa Coals Made by the Government Coal-testing Plant at the Louisiana Purchase Exposition, St. Louis, Mo., 19O4 Thomas Edmund Savage Published: 1905 Total Pages: 50 Get eBook
Report on the Geological Survey of the State of Iowa Iowa Geological Survey Published: 1858 Total Pages: 500 Get eBook
Analyses of Samples of Delivered Coal Collected from July 1, 1915 to January 1, 1922, with a Chapter on the Tidewater Pool Classifications Ned H. Snyder Published: 1923 Total Pages: 178 Get eBook
Report of the Geological Survey of the State of Iowa James Hall Published: 1858 Total Pages: 528 Get eBook
