@article{213864,
      note = {"Written and produced by UNEP GEMS Collaborating Centre  for Freshwater Quality Monitoring and Assessment, National  Water Research Institute, Environment Canada, Burlington,  Ontario, Canada".},
      author = {Fraser, Andrew S. and Meybeck, M. (Michel) and Ongley,  Edwin D.},
      url = {http://digitallibrary.un.org/record/213864},
      title = {Water quality of world river basins.},
      publisher = {UNEP,},
      recid = {213864},
      pages = {40 p. :},
      address = {Nairobi :. 1995},
      year = {1995},
}