@article{358760,
      url = {http://library.usi.edu/record/358760},
      title = {Principal rivers, roads, and canals, 1840 [electronic  resource].},
      publisher = {Maps.com,},
      recid = {358760},
      pages = {1 online resource (1 map)},
      address = {[S.l.] :},
      year = {1999},
}