@article{846808,
      author = {Walker, Edmund M., and Corbet, Philip S.,},
      url = {http://library.usi.edu/record/846808},
      title = {The odonata of Canada and Alaska., Volume three, part  III,: The anisoptera-three families /},
      recid = {846808},
      pages = {1 online resource (333 pages) :},
}