@article{457639,
      author = {Callicott, J. Baird.},
      url = {http://library.usi.edu/record/457639},
      title = {Companion to A Sand County almanac interpretive &  critical essays / [electronic resource] :},
      publisher = {Univ. Of Wisconsin Press,},
      recid = {457639},
      pages = {x, 308 p. :},
      address = {Madison, Wis. :},
      year = {1987},
}