• Creator
  • Lewis, William E. (William Emanuel), 1887-; Hansen, John C. (John Cornelius), 1921-; United States. Bureau of Plant Industry, Soils, and Agricultural Engineering
  • Publisher
  • Beltsville, Md. :U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Plant Industry, Soils, and Agricultural Engineering,1951
  • Description
  • No.247.