@article{42361,
      url = {http://digitallibrary.un.org/record/42361},
      title = {Production of orthophotomaps, illustrated by an example :  paper /},
      publisher = {UN,},
      recid = {42361},
      pages = {17 p. :},
      address = {New York :. 1982-12-09},
      year = {1982},
      month = {Dec},
}