| APA | IRR. (2012, February 9). In Acronym Geek. Retrieved 20:20, February 9, 2012, from http://www.acronymgeek.com/IRR |
| MLA | "IRR." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/IRR>. |
| MHRA | 'IRR', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/IRR> [accessed 9 February 2012] |
| Chicago | "IRR", http://www.acronymgeek.com/IRR (accessed February 9, 2012). |
| CBE/CSE | IRR [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/IRR. |
| Bluebook | IRR, http://www.acronymgeek.com/IRR (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IRR, http://www.acronymgeek.com/IRR (optional description here) (as of Feb. 9, 2012, 20:20). |
| AMA | IRR. Acronym Geek. February 9, 2012, 20:20. Available at: http://www.acronymgeek.com/IRR. Accessed February 9, 2012, 20:20. |