@article{445849,
      recid = {445849},
      author = {Walker, Denise C.},
      title = {Mass notification and crisis communications: planning,  preparedness, and systems /},
      publisher = {CRC Press,},
      address = {Boca Raton, Fla. :},
      pages = {xxii, 509 p. :},
      year = {2012},
      url = {http://library.usi.edu/record/445849},
}