@article{248735,
      url = {http://digitallibrary.un.org/record/248735},
      title = {Performance Appraisal System.},
      publisher = {UN,},
      recid = {248735},
      pages = {[1] p.},
      address = {[New York] :. 1997-12-30},
      year = {1997},
      month = {Dec},
}