| APA | DDXF. (2012, February 11). In Acronym Geek. Retrieved 23:52, February 11, 2012, from http://www.acronymgeek.com/DDXF |
| MLA | "DDXF." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/DDXF>. |
| MHRA | 'DDXF', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/DDXF> [accessed 11 February 2012] |
| Chicago | "DDXF", http://www.acronymgeek.com/DDXF (accessed February 11, 2012). |
| CBE/CSE | DDXF [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/DDXF. |
| Bluebook | DDXF, http://www.acronymgeek.com/DDXF (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DDXF, http://www.acronymgeek.com/DDXF (optional description here) (as of Feb. 11, 2012, 23:52). |
| AMA | DDXF. Acronym Geek. February 11, 2012, 23:52. Available at: http://www.acronymgeek.com/DDXF. Accessed February 11, 2012, 23:52. |