| APA | TDUF. (2012, February 16). In Acronym Geek. Retrieved 16:00, February 16, 2012, from http://www.acronymgeek.com/TDUF |
| MLA | "TDUF." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/TDUF>. |
| MHRA | 'TDUF', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/TDUF> [accessed 16 February 2012] |
| Chicago | "TDUF", http://www.acronymgeek.com/TDUF (accessed February 16, 2012). |
| CBE/CSE | TDUF [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/TDUF. |
| Bluebook | TDUF, http://www.acronymgeek.com/TDUF (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TDUF, http://www.acronymgeek.com/TDUF (optional description here) (as of Feb. 16, 2012, 16:00). |
| AMA | TDUF. Acronym Geek. February 16, 2012, 16:00. Available at: http://www.acronymgeek.com/TDUF. Accessed February 16, 2012, 16:00. |