Conservation of the soil. (Address of President Taft before the National Conservation Congress, at Kansas City, Mo., September 25, 1911.) - Taft, William H. (William Howard),; United States. Department of Agriculture. (Washington, D.C, Govt. Print. Off, 1911)
https://www.biodiversitylibrary.org/bibliography/43378
Keywords: Agriculture|Soils|United States|