@article{205043,
      url = {http://digitallibrary.un.org/record/205043},
      title = {Data book of world lake environments : a survey of the  state of world lakes /},
      publisher = {International Lake Environment Committee, UNEP,},
      recid = {205043},
      pages = {1 v. (various pagings) :},
      address = {[Nairobi] :. 1989},
      year = {1989},
}