| APA | CDKO. (2012, February 15). In Acronym Geek. Retrieved 16:26, February 15, 2012, from http://www.acronymgeek.com/CDKO |
| MLA | "CDKO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/CDKO>. |
| MHRA | 'CDKO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/CDKO> [accessed 15 February 2012] |
| Chicago | "CDKO", http://www.acronymgeek.com/CDKO (accessed February 15, 2012). |
| CBE/CSE | CDKO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/CDKO. |
| Bluebook | CDKO, http://www.acronymgeek.com/CDKO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CDKO, http://www.acronymgeek.com/CDKO (optional description here) (as of Feb. 15, 2012, 16:26). |
| AMA | CDKO. Acronym Geek. February 15, 2012, 16:26. Available at: http://www.acronymgeek.com/CDKO. Accessed February 15, 2012, 16:26. |