@article{108932,
      url = {http://digitallibrary.un.org/record/108932},
      title = {Standard procedure and data format for digital mapping :  paper /},
      publisher = {UN,},
      recid = {108932},
      pages = {8 p.},
      address = {[New York] :. 1990-12-21},
      year = {1990},
      month = {Dec},
}