@article{3932691,
      url = {http://digitallibrary.un.org/record/3932691},
      title = {The state of food and agriculture., 1989,: World and  regional reviews, sustainable development and natural  resource management},
      publisher = {Food and Agriculture Organization of the United Nations,},
      recid = {3932691},
      pages = {xix, 171 p. :},
      address = {Rome :. 1989},
      year = {1989},
}