| APA | D-F. (2012, February 13). In Acronym Geek. Retrieved 23:16, February 13, 2012, from http://www.acronymgeek.com/D-F |
| MLA | "D-F." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/D-F>. |
| MHRA | 'D-F', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/D-F> [accessed 13 February 2012] |
| Chicago | "D-F", http://www.acronymgeek.com/D-F (accessed February 13, 2012). |
| CBE/CSE | D-F [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/D-F. |
| Bluebook | D-F, http://www.acronymgeek.com/D-F (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, D-F, http://www.acronymgeek.com/D-F (optional description here) (as of Feb. 13, 2012, 23:16). |
| AMA | D-F. Acronym Geek. February 13, 2012, 23:16. Available at: http://www.acronymgeek.com/D-F. Accessed February 13, 2012, 23:16. |