| APA | DUU. (2012, February 12). In Acronym Geek. Retrieved 07:07, February 12, 2012, from http://www.acronymgeek.com/DUU |
| MLA | "DUU." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/DUU>. |
| MHRA | 'DUU', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/DUU> [accessed 12 February 2012] |
| Chicago | "DUU", http://www.acronymgeek.com/DUU (accessed February 12, 2012). |
| CBE/CSE | DUU [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/DUU. |
| Bluebook | DUU, http://www.acronymgeek.com/DUU (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DUU, http://www.acronymgeek.com/DUU (optional description here) (as of Feb. 12, 2012, 07:07). |
| AMA | DUU. Acronym Geek. February 12, 2012, 07:07. Available at: http://www.acronymgeek.com/DUU. Accessed February 12, 2012, 07:07. |