| APA | OIRS. (2012, February 17). In Acronym Geek. Retrieved 03:43, February 17, 2012, from http://www.acronymgeek.com/OIRS |
| MLA | "OIRS." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/OIRS>. |
| MHRA | 'OIRS', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/OIRS> [accessed 17 February 2012] |
| Chicago | "OIRS", http://www.acronymgeek.com/OIRS (accessed February 17, 2012). |
| CBE/CSE | OIRS [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/OIRS. |
| Bluebook | OIRS, http://www.acronymgeek.com/OIRS (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OIRS, http://www.acronymgeek.com/OIRS (optional description here) (as of Feb. 17, 2012, 03:43). |
| AMA | OIRS. Acronym Geek. February 17, 2012, 03:43. Available at: http://www.acronymgeek.com/OIRS. Accessed February 17, 2012, 03:43. |