@article{325983,
      author = {Dagg, Anne Innis.},
      url = {http://library.usi.edu/record/325983},
      title = {The social behavior of older animals /},
      publisher = {Johns Hopkins University Press,},
      recid = {325983},
      pages = {ix, 225 p. ;},
      address = {Baltimore :},
      year = {2009},
}