Northam, G. (1988). Shooting in the dark: Riot police in britain. Faber and Faber.
Chicago-Zitierstil (17. Ausg.)Northam, Gerry. Shooting in the Dark: Riot Police in Britain. London: Faber and Faber, 1988.
MLA-Zitierstil (8. Ausg.)Northam, Gerry. Shooting in the Dark: Riot Police in Britain. Faber and Faber, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.