@article{751082,
      author = {Preston, Richard Arthur.},
      url = {http://library.usi.edu/record/751082},
      title = {The defence of the undefended border planning for war in  North America, 1867-1939 / [electronic resource] :},
      publisher = {McGill-Queen's University Press,},
      recid = {751082},
      pages = {xiv, 300 p.},
      address = {Montreal :},
      year = {1977},
}