| APA | OSRU. (2012, February 14). In Acronym Geek. Retrieved 13:56, February 14, 2012, from http://www.acronymgeek.com/OSRU |
| MLA | "OSRU." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/OSRU>. |
| MHRA | 'OSRU', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/OSRU> [accessed 14 February 2012] |
| Chicago | "OSRU", http://www.acronymgeek.com/OSRU (accessed February 14, 2012). |
| CBE/CSE | OSRU [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/OSRU. |
| Bluebook | OSRU, http://www.acronymgeek.com/OSRU (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OSRU, http://www.acronymgeek.com/OSRU (optional description here) (as of Feb. 14, 2012, 13:56). |
| AMA | OSRU. Acronym Geek. February 14, 2012, 13:56. Available at: http://www.acronymgeek.com/OSRU. Accessed February 14, 2012, 13:56. |