@article{919818,
      author = {Packer, John G., and Gould, A. Joyce,},
      url = {http://library.usi.edu/record/919818},
      title = {Vascular plants of Alberta., Part 1,: Ferns, fern allies,  gymnosperms, and monocots /},
      recid = {919818},
      pages = {1 online resource (283 pages)},
}