| APA | OSOS. (2012, February 15). In Acronym Geek. Retrieved 01:11, February 15, 2012, from http://www.acronymgeek.com/OSOS |
| MLA | "OSOS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OSOS>. |
| MHRA | 'OSOS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OSOS> [accessed 15 February 2012] |
| Chicago | "OSOS", http://www.acronymgeek.com/OSOS (accessed February 15, 2012). |
| CBE/CSE | OSOS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OSOS. |
| Bluebook | OSOS, http://www.acronymgeek.com/OSOS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OSOS, http://www.acronymgeek.com/OSOS (optional description here) (as of Feb. 15, 2012, 01:11). |
| AMA | OSOS. Acronym Geek. February 15, 2012, 01:11. Available at: http://www.acronymgeek.com/OSOS. Accessed February 15, 2012, 01:11. |