@article{358912,
      url = {http://library.usi.edu/record/358912},
      title = {Immigrants to the United States, 1990 [electronic  resource].},
      publisher = {Maps.com,},
      recid = {358912},
      pages = {1 online resource (1 map)},
      address = {[S.l.] :},
      year = {1999},
}