@article{103829,
      url = {http://digitallibrary.un.org/record/103829},
      title = {The experience of the People's Republic of Bulgaria in a  sample application at the different stages of the  population census : report /},
      publisher = {UN,},
      recid = {103829},
      pages = {7 p.},
      address = {Geneva :. 1984-02-16},
      year = {1984},
      month = {Feb},
}