@article{802439,
      author = {Cliff, Norman, and Keats, J. A.},
      url = {http://library.usi.edu/record/802439},
      title = {Ordinal measurement in the behavioral sciences [electronic  resource] /},
      publisher = {Lawrence Erlbaum Associates,},
      recid = {802439},
      pages = {x, 230 p. :},
      address = {Mahwah, N.J. :},
      year = {2003},
}