| APA | DFD. (2012, February 14). In Acronym Geek. Retrieved 10:35, February 14, 2012, from http://www.acronymgeek.com/DFD |
| MLA | "DFD." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/DFD>. |
| MHRA | 'DFD', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/DFD> [accessed 14 February 2012] |
| Chicago | "DFD", http://www.acronymgeek.com/DFD (accessed February 14, 2012). |
| CBE/CSE | DFD [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/DFD. |
| Bluebook | DFD, http://www.acronymgeek.com/DFD (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DFD, http://www.acronymgeek.com/DFD (optional description here) (as of Feb. 14, 2012, 10:35). |
| AMA | DFD. Acronym Geek. February 14, 2012, 10:35. Available at: http://www.acronymgeek.com/DFD. Accessed February 14, 2012, 10:35. |