@article{298193,
      author = {Klein, Barbara Schave.},
      url = {http://library.usi.edu/record/298193},
      title = {Not all twins are alike : psychological profiles of  twinship /},
      publisher = {Praeger,},
      recid = {298193},
      pages = {xix, 133 p. :},
      address = {Westport, Conn. :},
      year = {2003},
}