@article{168442,
      url = {http://digitallibrary.un.org/record/168442},
      title = {Land degradation and food supply : issues and options for  food self-sufficiency in Africa.},
      publisher = {UN, ECA :},
      recid = {168442},
      pages = {iii, 16 p. :},
      address = {[Addis Ababa] :},
}