| APA | OSDO. (2012, February 15). In Acronym Geek. Retrieved 13:13, February 15, 2012, from http://www.acronymgeek.com/OSDO |
| MLA | "OSDO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OSDO>. |
| MHRA | 'OSDO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OSDO> [accessed 15 February 2012] |
| Chicago | "OSDO", http://www.acronymgeek.com/OSDO (accessed February 15, 2012). |
| CBE/CSE | OSDO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OSDO. |
| Bluebook | OSDO, http://www.acronymgeek.com/OSDO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OSDO, http://www.acronymgeek.com/OSDO (optional description here) (as of Feb. 15, 2012, 13:13). |
| AMA | OSDO. Acronym Geek. February 15, 2012, 13:13. Available at: http://www.acronymgeek.com/OSDO. Accessed February 15, 2012, 13:13. |