@article{67816,
      recid = {67816},
      author = {Cobarrubias, Juan,},
      title = {Progress in language planning : international perspectives  /},
      publisher = {Mouton Publishers,},
      address = {Berlin ;},
      pages = {383 p. ;},
      year = {1983},
      url = {http://library.usi.edu/record/67816},
}