| APA | TUDU. (2012, February 15). In Acronym Geek. Retrieved 17:51, February 15, 2012, from http://www.acronymgeek.com/TUDU |
| MLA | "TUDU." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/TUDU>. |
| MHRA | 'TUDU', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/TUDU> [accessed 15 February 2012] |
| Chicago | "TUDU", http://www.acronymgeek.com/TUDU (accessed February 15, 2012). |
| CBE/CSE | TUDU [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/TUDU. |
| Bluebook | TUDU, http://www.acronymgeek.com/TUDU (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TUDU, http://www.acronymgeek.com/TUDU (optional description here) (as of Feb. 15, 2012, 17:51). |
| AMA | TUDU. Acronym Geek. February 15, 2012, 17:51. Available at: http://www.acronymgeek.com/TUDU. Accessed February 15, 2012, 17:51. |