@article{91628,
      note = {"Annex: Guidelines for the preparation of case studies":  p. 1-2 (2nd group).},
      author = {Bielakowski, J. and Jaskiewicz, J. and Zurek, J.},
      url = {http://digitallibrary.un.org/record/91628},
      title = {The Vistula River Development Programme, Poland : example  case study /},
      publisher = {UN,},
      recid = {91628},
      pages = {iii, 16, 2, 9 p. :},
      address = {Geneva :. 1981-11-30},
      year = {1981},
      month = {Nov},
}