| APA | UDT. (2012, February 8). In Acronym Geek. Retrieved 23:38, February 8, 2012, from http://www.acronymgeek.com/UDT |
| MLA | "UDT." Acronym Geek. (2012). Acronym Geek. 8 Feb 2012 <http://www.acronymgeek.com/UDT>. |
| MHRA | 'UDT', Acronym Geek, 8 February 2012, <http://www.acronymgeek.com/UDT> [accessed 8 February 2012] |
| Chicago | "UDT", http://www.acronymgeek.com/UDT (accessed February 8, 2012). |
| CBE/CSE | UDT [Internet]. Acronym Geek; 2012 Feb 8 [cited 2012 Feb 8]. Available from: http://www.acronymgeek.com/UDT. |
| Bluebook | UDT, http://www.acronymgeek.com/UDT (last visited February 8, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UDT, http://www.acronymgeek.com/UDT (optional description here) (as of Feb. 8, 2012, 23:38). |
| AMA | UDT. Acronym Geek. February 8, 2012, 23:38. Available at: http://www.acronymgeek.com/UDT. Accessed February 8, 2012, 23:38. |