| APA | NDTO. (2012, February 17). In Acronym Geek. Retrieved 00:39, February 17, 2012, from http://www.acronymgeek.com/NDTO |
| MLA | "NDTO." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/NDTO>. |
| MHRA | 'NDTO', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/NDTO> [accessed 17 February 2012] |
| Chicago | "NDTO", http://www.acronymgeek.com/NDTO (accessed February 17, 2012). |
| CBE/CSE | NDTO [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/NDTO. |
| Bluebook | NDTO, http://www.acronymgeek.com/NDTO (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NDTO, http://www.acronymgeek.com/NDTO (optional description here) (as of Feb. 17, 2012, 00:39). |
| AMA | NDTO. Acronym Geek. February 17, 2012, 00:39. Available at: http://www.acronymgeek.com/NDTO. Accessed February 17, 2012, 00:39. |