| APA | FNSO. (2012, February 16). In Acronym Geek. Retrieved 19:20, February 16, 2012, from http://www.acronymgeek.com/FNSO |
| MLA | "FNSO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/FNSO>. |
| MHRA | 'FNSO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/FNSO> [accessed 16 February 2012] |
| Chicago | "FNSO", http://www.acronymgeek.com/FNSO (accessed February 16, 2012). |
| CBE/CSE | FNSO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/FNSO. |
| Bluebook | FNSO, http://www.acronymgeek.com/FNSO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FNSO, http://www.acronymgeek.com/FNSO (optional description here) (as of Feb. 16, 2012, 19:20). |
| AMA | FNSO. Acronym Geek. February 16, 2012, 19:20. Available at: http://www.acronymgeek.com/FNSO. Accessed February 16, 2012, 19:20. |