| APA | CDO. (2012, February 14). In Acronym Geek. Retrieved 07:39, February 14, 2012, from http://www.acronymgeek.com/CDO |
| MLA | "CDO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/CDO>. |
| MHRA | 'CDO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/CDO> [accessed 14 February 2012] |
| Chicago | "CDO", http://www.acronymgeek.com/CDO (accessed February 14, 2012). |
| CBE/CSE | CDO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/CDO. |
| Bluebook | CDO, http://www.acronymgeek.com/CDO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CDO, http://www.acronymgeek.com/CDO (optional description here) (as of Feb. 14, 2012, 07:39). |
| AMA | CDO. Acronym Geek. February 14, 2012, 07:39. Available at: http://www.acronymgeek.com/CDO. Accessed February 14, 2012, 07:39. |