@article{431977,
      note = {Relief shown by hachures.},
      author = {Gottfried, Bradley M.},
      url = {http://library.usi.edu/record/431977},
      title = {The maps of Gettysburg an atlas of the Gettysburg  campaign, June 3-July 13, 1863 / [electronic resource] :},
      publisher = {Savas Beatie,},
      recid = {431977},
      pages = {xx, 363 p. :},
      address = {New York :},
      year = {2010},
}