@article{312896,
      author = {Conkin, Paul Keith.},
      url = {http://library.usi.edu/record/312896},
      title = {The state of the Earth : environmental challenges on the  road to 2100 /},
      publisher = {University Press of Kentucky,},
      recid = {312896},
      pages = {xii, 308 p. :},
      address = {Lexington, Ky. :},
      year = {2007},
}