| APA | YUDF. (2012, February 16). In Acronym Geek. Retrieved 04:26, February 16, 2012, from http://www.acronymgeek.com/YUDF |
| MLA | "YUDF." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/YUDF>. |
| MHRA | 'YUDF', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/YUDF> [accessed 16 February 2012] |
| Chicago | "YUDF", http://www.acronymgeek.com/YUDF (accessed February 16, 2012). |
| CBE/CSE | YUDF [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/YUDF. |
| Bluebook | YUDF, http://www.acronymgeek.com/YUDF (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, YUDF, http://www.acronymgeek.com/YUDF (optional description here) (as of Feb. 16, 2012, 04:26). |
| AMA | YUDF. Acronym Geek. February 16, 2012, 04:26. Available at: http://www.acronymgeek.com/YUDF. Accessed February 16, 2012, 04:26. |