| APA | DYF. (2012, February 14). In Acronym Geek. Retrieved 19:32, February 14, 2012, from http://www.acronymgeek.com/DYF |
| MLA | "DYF." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/DYF>. |
| MHRA | 'DYF', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/DYF> [accessed 14 February 2012] |
| Chicago | "DYF", http://www.acronymgeek.com/DYF (accessed February 14, 2012). |
| CBE/CSE | DYF [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/DYF. |
| Bluebook | DYF, http://www.acronymgeek.com/DYF (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DYF, http://www.acronymgeek.com/DYF (optional description here) (as of Feb. 14, 2012, 19:32). |
| AMA | DYF. Acronym Geek. February 14, 2012, 19:32. Available at: http://www.acronymgeek.com/DYF. Accessed February 14, 2012, 19:32. |