@article{911507,
      author = {Birzer, Michael L., and Bayens, Gerald J., and Roberson,  Cliff,},
      url = {http://library.usi.edu/record/911507},
      title = {Principles of leadership and management in law enforcement  /},
      recid = {911507},
      pages = {1 online resource (379 pages) :},
}