O'Sullivan, D. J. (1999). The Irish constabularies, 1822-1922: A century of policing in Ireland. Brandon.
Chicago Style (17th ed.) CitationO'Sullivan, Donal J. The Irish Constabularies, 1822-1922: A Century of Policing in Ireland. Dingle, Co. Kerry: Brandon, 1999.
MLA (8th ed.) CitationO'Sullivan, Donal J. The Irish Constabularies, 1822-1922: A Century of Policing in Ireland. Brandon, 1999.
Warning: These citations may not always be 100% accurate.