| APA | FFSO. (2012, February 16). In Acronym Geek. Retrieved 00:41, February 16, 2012, from http://www.acronymgeek.com/FFSO |
| MLA | "FFSO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/FFSO>. |
| MHRA | 'FFSO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/FFSO> [accessed 16 February 2012] |
| Chicago | "FFSO", http://www.acronymgeek.com/FFSO (accessed February 16, 2012). |
| CBE/CSE | FFSO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/FFSO. |
| Bluebook | FFSO, http://www.acronymgeek.com/FFSO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FFSO, http://www.acronymgeek.com/FFSO (optional description here) (as of Feb. 16, 2012, 00:41). |
| AMA | FFSO. Acronym Geek. February 16, 2012, 00:41. Available at: http://www.acronymgeek.com/FFSO. Accessed February 16, 2012, 00:41. |