@article{421703,
      author = {Shaffer, David Williamson.},
      url = {http://library.usi.edu/record/421703},
      title = {How computer games help children learn [electronic  resource] /},
      publisher = {Palgrave Macmillan,},
      recid = {421703},
      pages = {xii, 242 p. :},
      address = {New York, N.Y. ;},
      year = {2007},
}