@article{722304,
      note = {Inset: Air routes and air fields.},
      url = {http://digitallibrary.un.org/record/722304},
      title = {Eritrea : principal transport routes [cartographic  material]},
      publisher = {UN,},
      recid = {722304},
      pages = {1 map :},
      address = {[New York] :. 1949-12},
      year = {1949},
      month = {Dec},
}