@article{474750,
      author = {Williamson, John B. and Pampel, Fred C.},
      url = {http://library.usi.edu/record/474750},
      title = {Old-age security in comparative perspective/},
      publisher = {Oxford University Press,},
      recid = {474750},
      pages = {xii, 304 p.},
      address = {New York :},
      year = {1993},
}