| APA | FIRR. (2012, February 17). In Acronym Geek. Retrieved 05:27, February 17, 2012, from http://www.acronymgeek.com/FIRR |
| MLA | "FIRR." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/FIRR>. |
| MHRA | 'FIRR', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/FIRR> [accessed 17 February 2012] |
| Chicago | "FIRR", http://www.acronymgeek.com/FIRR (accessed February 17, 2012). |
| CBE/CSE | FIRR [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/FIRR. |
| Bluebook | FIRR, http://www.acronymgeek.com/FIRR (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FIRR, http://www.acronymgeek.com/FIRR (optional description here) (as of Feb. 17, 2012, 05:27). |
| AMA | FIRR. Acronym Geek. February 17, 2012, 05:27. Available at: http://www.acronymgeek.com/FIRR. Accessed February 17, 2012, 05:27. |