@article{393851,
      author = {Ettinger, Patrick W.},
      url = {http://library.usi.edu/record/393851},
      title = {Imaginary lines border enforcement and the origins of  undocumented immigration, 1882-1930 / [electronic resource]  :},
      publisher = {University of Texas Press,},
      recid = {393851},
      pages = {xi, 244 p.},
      address = {Austin :},
      year = {2009},
}