| APA | CKDF. (2012, February 14). In Acronym Geek. Retrieved 23:37, February 14, 2012, from http://www.acronymgeek.com/CKDF |
| MLA | "CKDF." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/CKDF>. |
| MHRA | 'CKDF', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/CKDF> [accessed 14 February 2012] |
| Chicago | "CKDF", http://www.acronymgeek.com/CKDF (accessed February 14, 2012). |
| CBE/CSE | CKDF [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/CKDF. |
| Bluebook | CKDF, http://www.acronymgeek.com/CKDF (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CKDF, http://www.acronymgeek.com/CKDF (optional description here) (as of Feb. 14, 2012, 23:37). |
| AMA | CKDF. Acronym Geek. February 14, 2012, 23:37. Available at: http://www.acronymgeek.com/CKDF. Accessed February 14, 2012, 23:37. |