@article{459551,
      author = {Montgomery, David R.,},
      url = {http://library.usi.edu/record/459551},
      title = {Dirt the erosion of civilizations / [electronic resource]  :},
      publisher = {University of California Press,},
      recid = {459551},
      pages = {xv, 285 p. :},
      address = {Berkeley, Calif. ;},
      year = {2012},
}