@article{369966,
      author = {Sack, Robert David.},
      url = {http://library.usi.edu/record/369966},
      title = {Progress geographical essays / [electronic resource] :},
      publisher = {Johns Hopkins University Press,},
      recid = {369966},
      pages = {xvi, 140 p. :},
      address = {Baltimore :},
      year = {2002},
}