| APA | CUOS. (2012, February 15). In Acronym Geek. Retrieved 22:43, February 15, 2012, from http://www.acronymgeek.com/CUOS |
| MLA | "CUOS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/CUOS>. |
| MHRA | 'CUOS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/CUOS> [accessed 15 February 2012] |
| Chicago | "CUOS", http://www.acronymgeek.com/CUOS (accessed February 15, 2012). |
| CBE/CSE | CUOS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/CUOS. |
| Bluebook | CUOS, http://www.acronymgeek.com/CUOS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CUOS, http://www.acronymgeek.com/CUOS (optional description here) (as of Feb. 15, 2012, 22:43). |
| AMA | CUOS. Acronym Geek. February 15, 2012, 22:43. Available at: http://www.acronymgeek.com/CUOS. Accessed February 15, 2012, 22:43. |