@article{122631,
      author = {Freedman, David, and Pisani, Robert, and Purves, Roger,},
      url = {http://library.usi.edu/record/122631},
      title = {Statistics /},
      publisher = {Norton,},
      recid = {122631},
      pages = {xv, 506, 83 p. :},
      address = {New York :},
      year = {1978},
}