| APA | UDFS. (2012, February 12). In Acronym Geek. Retrieved 01:33, February 12, 2012, from http://www.acronymgeek.com/UDFS |
| MLA | "UDFS." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/UDFS>. |
| MHRA | 'UDFS', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/UDFS> [accessed 12 February 2012] |
| Chicago | "UDFS", http://www.acronymgeek.com/UDFS (accessed February 12, 2012). |
| CBE/CSE | UDFS [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/UDFS. |
| Bluebook | UDFS, http://www.acronymgeek.com/UDFS (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UDFS, http://www.acronymgeek.com/UDFS (optional description here) (as of Feb. 12, 2012, 01:33). |
| AMA | UDFS. Acronym Geek. February 12, 2012, 01:33. Available at: http://www.acronymgeek.com/UDFS. Accessed February 12, 2012, 01:33. |