| APA | OFSI. (2012, February 15). In Acronym Geek. Retrieved 16:58, February 15, 2012, from http://www.acronymgeek.com/OFSI |
| MLA | "OFSI." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OFSI>. |
| MHRA | 'OFSI', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OFSI> [accessed 15 February 2012] |
| Chicago | "OFSI", http://www.acronymgeek.com/OFSI (accessed February 15, 2012). |
| CBE/CSE | OFSI [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OFSI. |
| Bluebook | OFSI, http://www.acronymgeek.com/OFSI (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OFSI, http://www.acronymgeek.com/OFSI (optional description here) (as of Feb. 15, 2012, 16:58). |
| AMA | OFSI. Acronym Geek. February 15, 2012, 16:58. Available at: http://www.acronymgeek.com/OFSI. Accessed February 15, 2012, 16:58. |