@article{325511,
      recid = {325511},
      author = {Krugman, Paul R.},
      title = {Geography and trade /},
      publisher = {Leuven University Press ;},
      address = {Leuven, Belgium :},
      pages = {xi, 142 p. :},
      year = {1993},
      url = {http://library.usi.edu/record/325511},
}