| APA | TTDB. (2012, February 16). In Acronym Geek. Retrieved 15:10, February 16, 2012, from http://www.acronymgeek.com/TTDB |
| MLA | "TTDB." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/TTDB>. |
| MHRA | 'TTDB', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/TTDB> [accessed 16 February 2012] |
| Chicago | "TTDB", http://www.acronymgeek.com/TTDB (accessed February 16, 2012). |
| CBE/CSE | TTDB [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/TTDB. |
| Bluebook | TTDB, http://www.acronymgeek.com/TTDB (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TTDB, http://www.acronymgeek.com/TTDB (optional description here) (as of Feb. 16, 2012, 15:10). |
| AMA | TTDB. Acronym Geek. February 16, 2012, 15:10. Available at: http://www.acronymgeek.com/TTDB. Accessed February 16, 2012, 15:10. |