@article{7797,
      recid = {7797},
      author = {Drew, Clifford J.,},
      title = {Mental retardation : social and educational perspectives  /},
      publisher = {Mosby,},
      address = {Saint Louis :},
      pages = {xvi, 248 p. :},
      year = {1977},
      url = {http://library.usi.edu/record/7797},
}