@article{39995,
      recid = {39995},
      author = {Pyle, Robert Michael.},
      title = {The Audubon Society field guide to North American  butterflies /},
      publisher = {Knopf :},
      address = {New York :},
      pages = {916 p. :},
      year = {1981},
      note = {Includes indexes.},
      url = {http://library.usi.edu/record/39995},
}