| APA | CKDN. (2012, February 14). In Acronym Geek. Retrieved 20:27, February 14, 2012, from http://www.acronymgeek.com/CKDN |
| MLA | "CKDN." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/CKDN>. |
| MHRA | 'CKDN', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/CKDN> [accessed 14 February 2012] |
| Chicago | "CKDN", http://www.acronymgeek.com/CKDN (accessed February 14, 2012). |
| CBE/CSE | CKDN [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/CKDN. |
| Bluebook | CKDN, http://www.acronymgeek.com/CKDN (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CKDN, http://www.acronymgeek.com/CKDN (optional description here) (as of Feb. 14, 2012, 20:27). |
| AMA | CKDN. Acronym Geek. February 14, 2012, 20:27. Available at: http://www.acronymgeek.com/CKDN. Accessed February 14, 2012, 20:27. |