@article{25548,
      author = {Nakazawa, Makio.},
      url = {http://digitallibrary.un.org/record/25548},
      title = {Measurement of productivity at the firm level.},
      publisher = {UN,},
      recid = {25548},
      pages = {[12] p. :},
      address = {Bangkok :. 1981-06-29},
      year = {1981},
      month = {Jun},
}