| APA | FIRU. (2012, February 16). In Acronym Geek. Retrieved 11:27, February 16, 2012, from http://www.acronymgeek.com/FIRU |
| MLA | "FIRU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/FIRU>. |
| MHRA | 'FIRU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/FIRU> [accessed 16 February 2012] |
| Chicago | "FIRU", http://www.acronymgeek.com/FIRU (accessed February 16, 2012). |
| CBE/CSE | FIRU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/FIRU. |
| Bluebook | FIRU, http://www.acronymgeek.com/FIRU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FIRU, http://www.acronymgeek.com/FIRU (optional description here) (as of Feb. 16, 2012, 11:27). |
| AMA | FIRU. Acronym Geek. February 16, 2012, 11:27. Available at: http://www.acronymgeek.com/FIRU. Accessed February 16, 2012, 11:27. |