@article{97106,
      author = {Clark, P.G.},
      url = {http://digitallibrary.un.org/record/97106},
      title = {Problems of aging water supply and sewerage systems in  Yorkshire /},
      publisher = {UN,},
      recid = {97106},
      pages = {10 p. :},
      address = {Geneva :. 1982-05-10},
      year = {1982},
      month = {May},
}