| APA | NDTD. (2012, February 15). In Acronym Geek. Retrieved 17:25, February 15, 2012, from http://www.acronymgeek.com/NDTD |
| MLA | "NDTD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/NDTD>. |
| MHRA | 'NDTD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/NDTD> [accessed 15 February 2012] |
| Chicago | "NDTD", http://www.acronymgeek.com/NDTD (accessed February 15, 2012). |
| CBE/CSE | NDTD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/NDTD. |
| Bluebook | NDTD, http://www.acronymgeek.com/NDTD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NDTD, http://www.acronymgeek.com/NDTD (optional description here) (as of Feb. 15, 2012, 17:25). |
| AMA | NDTD. Acronym Geek. February 15, 2012, 17:25. Available at: http://www.acronymgeek.com/NDTD. Accessed February 15, 2012, 17:25. |