Editore: Wisconsin Geological and Natural History Survey, Madison WI, 1914
Da: Chequamegon Books, Washburn, WI, U.S.A.
Center Stapled Booklet. Condizione: Very Good+. Bulletin No. XXXI Soil Series No. 5. Survey conducted in cooperation with the US Dept. of Agriculture, Bureau of Soils. 51 pages including soil map (32 x 44") attached to back cover. Cover edges slightly rubbed.; 6 x 9 ".