The soil and its management,

Схожие документы

• Our soils and their management; an introduction to soil and water conservation
  по: Donahue, Roy Luther, 1908-
  Опубликовано: (1961)
• Using and managing soils
  по: Gustafson, A. F. (Axel Ferdinand), 1880-1942
  Опубликовано: (1948)
• Productive soils; the fundamentals of successful soil management and profitable crop production
  по: Weir, Wilbert Walter, 1882-
  Опубликовано: (1938)
• ...Productive soils; the fundamentals of successful soil management and profitable crop production
  по: Weir, Wilbert Walter, 1882-
  Опубликовано: (1922)
• Farm soils, their management and fertilization
  по: Worthen, Edmund Louis, 1882-
  Опубликовано: (1948)