O'Toole, John; Dooney, Sean (24 July 2009). Irish Government Today. Gill & Macmillan Ltd. ISBN9780717155347. Archived from the original on 12 September 2021. Retrieved 25 November 2020 – via Google Books.
O'Toole, John; Dooney, Sean (24 July 2009). Irish Government Today. Gill & Macmillan Ltd. ISBN9780717155347. Archived from the original on 12 September 2021. Retrieved 25 November 2020 – via Google Books.