@article{1393496,
      author = {DeMarco, Lois, and Mengel, Jay,},
      url = {http://library.usi.edu/record/1393496},
      title = {Identifying trees of the West : an all-season guide to  western North America /},
      recid = {1393496},
      pages = {1 online resource (466 pages) :},
}