| APA | NTTD. (2012, February 16). In Acronym Geek. Retrieved 14:25, February 16, 2012, from http://www.acronymgeek.com/NTTD |
| MLA | "NTTD." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/NTTD>. |
| MHRA | 'NTTD', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/NTTD> [accessed 16 February 2012] |
| Chicago | "NTTD", http://www.acronymgeek.com/NTTD (accessed February 16, 2012). |
| CBE/CSE | NTTD [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/NTTD. |
| Bluebook | NTTD, http://www.acronymgeek.com/NTTD (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NTTD, http://www.acronymgeek.com/NTTD (optional description here) (as of Feb. 16, 2012, 14:25). |
| AMA | NTTD. Acronym Geek. February 16, 2012, 14:25. Available at: http://www.acronymgeek.com/NTTD. Accessed February 16, 2012, 14:25. |