@article{430064,
      recid = {430064},
      author = {Beerling, D. J.},
      title = {The emerald planet how plants changed Earth's history /  [electronic resource] :},
      publisher = {Oxford University Press,},
      address = {Oxford ;},
      pages = {xvi, 288 p. :},
      year = {2007},
      url = {http://library.usi.edu/record/430064},
}