| APA | DFK. (2012, February 9). In Acronym Geek. Retrieved 08:30, February 9, 2012, from http://www.acronymgeek.com/DFK |
| MLA | "DFK." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/DFK>. |
| MHRA | 'DFK', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/DFK> [accessed 9 February 2012] |
| Chicago | "DFK", http://www.acronymgeek.com/DFK (accessed February 9, 2012). |
| CBE/CSE | DFK [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/DFK. |
| Bluebook | DFK, http://www.acronymgeek.com/DFK (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DFK, http://www.acronymgeek.com/DFK (optional description here) (as of Feb. 9, 2012, 08:30). |
| AMA | DFK. Acronym Geek. February 9, 2012, 08:30. Available at: http://www.acronymgeek.com/DFK. Accessed February 9, 2012, 08:30. |