@article{473436,
      recid = {473436},
      author = {Tryon, Rolla Milton,},
      title = {Ferns of Minnesota [electronic resource] /},
      publisher = {University of Minnesota Press,},
      address = {Minneapolis :},
      pages = {165 p., [4] leaves of plates :},
      year = {1980},
      note = {Edition for 1954 published under title: The ferns and fern  allies of Minnesota.},
      url = {http://library.usi.edu/record/473436},
}