@article{312999,
      author = {Shulk, Bernard F.},
      url = {http://library.usi.edu/record/312999},
      title = {Greenhouse gases and their impact /},
      publisher = {Nova Science Publishers,},
      recid = {312999},
      pages = {viii, 182 p. :},
      address = {New York :},
      year = {2007},
}