| APA | DFDN. (2012, February 17). In Acronym Geek. Retrieved 01:50, February 17, 2012, from http://www.acronymgeek.com/DFDN |
| MLA | "DFDN." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/DFDN>. |
| MHRA | 'DFDN', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/DFDN> [accessed 17 February 2012] |
| Chicago | "DFDN", http://www.acronymgeek.com/DFDN (accessed February 17, 2012). |
| CBE/CSE | DFDN [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/DFDN. |
| Bluebook | DFDN, http://www.acronymgeek.com/DFDN (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DFDN, http://www.acronymgeek.com/DFDN (optional description here) (as of Feb. 17, 2012, 01:50). |
| AMA | DFDN. Acronym Geek. February 17, 2012, 01:50. Available at: http://www.acronymgeek.com/DFDN. Accessed February 17, 2012, 01:50. |