| APA | DDUT. (2012, February 16). In Acronym Geek. Retrieved 05:56, February 16, 2012, from http://www.acronymgeek.com/DDUT |
| MLA | "DDUT." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/DDUT>. |
| MHRA | 'DDUT', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/DDUT> [accessed 16 February 2012] |
| Chicago | "DDUT", http://www.acronymgeek.com/DDUT (accessed February 16, 2012). |
| CBE/CSE | DDUT [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/DDUT. |
| Bluebook | DDUT, http://www.acronymgeek.com/DDUT (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DDUT, http://www.acronymgeek.com/DDUT (optional description here) (as of Feb. 16, 2012, 05:56). |
| AMA | DDUT. Acronym Geek. February 16, 2012, 05:56. Available at: http://www.acronymgeek.com/DDUT. Accessed February 16, 2012, 05:56. |