• publisher: Washington, D.C. : U.S. Dept. of Agriculture
  • creator: Lassen, Leon, b. 1902 Lull, Howard William, 1915- Frank, Bernard, 1902-1964
  • contributor: Lull, Howard William, 1915- Frank, Bernard, 1902-1964
  • Keyword: Watershed management.
  • years: 1963.
  • pages: 68 p. :
  • language: spa
  • notes: Translated from English into Spanish.
  • download: pdf file