| APA | FNU. (2012, February 14). In Acronym Geek. Retrieved 09:56, February 14, 2012, from http://www.acronymgeek.com/FNU |
| MLA | "FNU." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/FNU>. |
| MHRA | 'FNU', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/FNU> [accessed 14 February 2012] |
| Chicago | "FNU", http://www.acronymgeek.com/FNU (accessed February 14, 2012). |
| CBE/CSE | FNU [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/FNU. |
| Bluebook | FNU, http://www.acronymgeek.com/FNU (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FNU, http://www.acronymgeek.com/FNU (optional description here) (as of Feb. 14, 2012, 09:56). |
| AMA | FNU. Acronym Geek. February 14, 2012, 09:56. Available at: http://www.acronymgeek.com/FNU. Accessed February 14, 2012, 09:56. |