@article{23034,
      url = {http://digitallibrary.un.org/record/23034},
      title = {Causes and treatment of incomplete data in household  surveys : report /},
      publisher = {UN,},
      recid = {23034},
      pages = {[51] p., including annex :},
      address = {Geneva :. 1981-04-07},
      year = {1981},
      month = {Apr},
}