| APA | CCO. (2012, February 4). In Acronym Geek. Retrieved 11:38, February 4, 2012, from http://www.acronymgeek.com/CCO |
| MLA | "CCO." Acronym Geek. (2012). Acronym Geek. 4 Feb 2012 <http://www.acronymgeek.com/CCO>. |
| MHRA | 'CCO', Acronym Geek, 4 February 2012, <http://www.acronymgeek.com/CCO> [accessed 4 February 2012] |
| Chicago | "CCO", http://www.acronymgeek.com/CCO (accessed February 4, 2012). |
| CBE/CSE | CCO [Internet]. Acronym Geek; 2012 Feb 4 [cited 2012 Feb 4]. Available from: http://www.acronymgeek.com/CCO. |
| Bluebook | CCO, http://www.acronymgeek.com/CCO (last visited February 4, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CCO, http://www.acronymgeek.com/CCO (optional description here) (as of Feb. 4, 2012, 11:38). |
| AMA | CCO. Acronym Geek. February 4, 2012, 11:38. Available at: http://www.acronymgeek.com/CCO. Accessed February 4, 2012, 11:38. |