| APA | IBNR. (2012, February 15). In Acronym Geek. Retrieved 13:53, February 15, 2012, from http://www.acronymgeek.com/IBNR |
| MLA | "IBNR." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/IBNR>. |
| MHRA | 'IBNR', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/IBNR> [accessed 15 February 2012] |
| Chicago | "IBNR", http://www.acronymgeek.com/IBNR (accessed February 15, 2012). |
| CBE/CSE | IBNR [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/IBNR. |
| Bluebook | IBNR, http://www.acronymgeek.com/IBNR (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IBNR, http://www.acronymgeek.com/IBNR (optional description here) (as of Feb. 15, 2012, 13:53). |
| AMA | IBNR. Acronym Geek. February 15, 2012, 13:53. Available at: http://www.acronymgeek.com/IBNR. Accessed February 15, 2012, 13:53. |