| APA | OSSA. (2012, February 17). In Acronym Geek. Retrieved 03:13, February 17, 2012, from http://www.acronymgeek.com/OSSA |
| MLA | "OSSA." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/OSSA>. |
| MHRA | 'OSSA', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/OSSA> [accessed 17 February 2012] |
| Chicago | "OSSA", http://www.acronymgeek.com/OSSA (accessed February 17, 2012). |
| CBE/CSE | OSSA [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/OSSA. |
| Bluebook | OSSA, http://www.acronymgeek.com/OSSA (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OSSA, http://www.acronymgeek.com/OSSA (optional description here) (as of Feb. 17, 2012, 03:13). |
| AMA | OSSA. Acronym Geek. February 17, 2012, 03:13. Available at: http://www.acronymgeek.com/OSSA. Accessed February 17, 2012, 03:13. |