| APA | UFD. (2012, February 9). In Acronym Geek. Retrieved 00:04, February 9, 2012, from http://www.acronymgeek.com/UFD |
| MLA | "UFD." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/UFD>. |
| MHRA | 'UFD', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/UFD> [accessed 9 February 2012] |
| Chicago | "UFD", http://www.acronymgeek.com/UFD (accessed February 9, 2012). |
| CBE/CSE | UFD [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/UFD. |
| Bluebook | UFD, http://www.acronymgeek.com/UFD (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UFD, http://www.acronymgeek.com/UFD (optional description here) (as of Feb. 9, 2012, 00:04). |
| AMA | UFD. Acronym Geek. February 9, 2012, 00:04. Available at: http://www.acronymgeek.com/UFD. Accessed February 9, 2012, 00:04. |