| APA | TTDA. (2012, February 15). In Acronym Geek. Retrieved 16:59, February 15, 2012, from http://www.acronymgeek.com/TTDA |
| MLA | "TTDA." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/TTDA>. |
| MHRA | 'TTDA', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/TTDA> [accessed 15 February 2012] |
| Chicago | "TTDA", http://www.acronymgeek.com/TTDA (accessed February 15, 2012). |
| CBE/CSE | TTDA [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/TTDA. |
| Bluebook | TTDA, http://www.acronymgeek.com/TTDA (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TTDA, http://www.acronymgeek.com/TTDA (optional description here) (as of Feb. 15, 2012, 16:59). |
| AMA | TTDA. Acronym Geek. February 15, 2012, 16:59. Available at: http://www.acronymgeek.com/TTDA. Accessed February 15, 2012, 16:59. |