| APA | CUOP. (2012, February 16). In Acronym Geek. Retrieved 14:30, February 16, 2012, from http://www.acronymgeek.com/CUOP |
| MLA | "CUOP." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/CUOP>. |
| MHRA | 'CUOP', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/CUOP> [accessed 16 February 2012] |
| Chicago | "CUOP", http://www.acronymgeek.com/CUOP (accessed February 16, 2012). |
| CBE/CSE | CUOP [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/CUOP. |
| Bluebook | CUOP, http://www.acronymgeek.com/CUOP (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CUOP, http://www.acronymgeek.com/CUOP (optional description here) (as of Feb. 16, 2012, 14:30). |
| AMA | CUOP. Acronym Geek. February 16, 2012, 14:30. Available at: http://www.acronymgeek.com/CUOP. Accessed February 16, 2012, 14:30. |