@article{172293,
      note = {Distributed to depository libraries in microfiche.},
      author = {Ristow, Walter W.},
      url = {http://library.usi.edu/record/172293},
      title = {Maps for an emerging nation : commercial cartography in  nineteenth-century America : an exhibition at the Library  of Congress /},
      publisher = {The Library,},
      recid = {172293},
      pages = {v, 66 p. :},
      address = {Washington :},
      year = {1977},
}