@article{3933884,
      url = {http://digitallibrary.un.org/record/3933884},
      title = {The state of food and agriculture., 1971},
      publisher = {Food and Agriculture Organization of the United Nations,},
      recid = {3933884},
      pages = {xii, 234 p. :},
      address = {Rome :. 1971},
      year = {1971},
}