@article{1399784,
      author = {Ryan, Thomas P.,},
      url = {http://library.usi.edu/record/1399784},
      title = {Statistical methods for quality improvement /},
      publisher = {Wiley,},
      recid = {1399784},
      pages = {1 online resource (xxiv, 666 pages ) :},
      address = {Hoboken, N.J. :},
      year = {2011},
}