@article{1492039,
      author = {Keppie, L. J. F.,},
      url = {http://library.usi.edu/record/1492039},
      title = {Slingers and sling bullets in the Roman Civil Wars of the  Late Republic, 90-31 BC /},
      recid = {1492039},
      pages = {1 online resource (vi, 99 pages) :},
}