@article{441516,
      author = {Greenhow, Christine.},
      url = {http://library.usi.edu/record/441516},
      title = {On the horizon, Volume 19, Number 1,: Online social  networks as a site for learning / [electronic resource] .},
      publisher = {Emerald,},
      recid = {441516},
      pages = {1 online resource (67 p.) :},
      address = {[Bradford, UK] :},
      year = {2011},
}