| APA | OFSN. (2012, February 16). In Acronym Geek. Retrieved 11:00, February 16, 2012, from http://www.acronymgeek.com/OFSN |
| MLA | "OFSN." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/OFSN>. |
| MHRA | 'OFSN', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/OFSN> [accessed 16 February 2012] |
| Chicago | "OFSN", http://www.acronymgeek.com/OFSN (accessed February 16, 2012). |
| CBE/CSE | OFSN [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/OFSN. |
| Bluebook | OFSN, http://www.acronymgeek.com/OFSN (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OFSN, http://www.acronymgeek.com/OFSN (optional description here) (as of Feb. 16, 2012, 11:00). |
| AMA | OFSN. Acronym Geek. February 16, 2012, 11:00. Available at: http://www.acronymgeek.com/OFSN. Accessed February 16, 2012, 11:00. |