| APA | KDF. (2012, February 14). In Acronym Geek. Retrieved 04:20, February 14, 2012, from http://www.acronymgeek.com/KDF |
| MLA | "KDF." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/KDF>. |
| MHRA | 'KDF', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/KDF> [accessed 14 February 2012] |
| Chicago | "KDF", http://www.acronymgeek.com/KDF (accessed February 14, 2012). |
| CBE/CSE | KDF [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/KDF. |
| Bluebook | KDF, http://www.acronymgeek.com/KDF (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, KDF, http://www.acronymgeek.com/KDF (optional description here) (as of Feb. 14, 2012, 04:20). |
| AMA | KDF. Acronym Geek. February 14, 2012, 04:20. Available at: http://www.acronymgeek.com/KDF. Accessed February 14, 2012, 04:20. |