| APA | NDID. (2012, February 15). In Acronym Geek. Retrieved 04:25, February 15, 2012, from http://www.acronymgeek.com/NDID |
| MLA | "NDID." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/NDID>. |
| MHRA | 'NDID', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/NDID> [accessed 15 February 2012] |
| Chicago | "NDID", http://www.acronymgeek.com/NDID (accessed February 15, 2012). |
| CBE/CSE | NDID [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/NDID. |
| Bluebook | NDID, http://www.acronymgeek.com/NDID (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NDID, http://www.acronymgeek.com/NDID (optional description here) (as of Feb. 15, 2012, 04:25). |
| AMA | NDID. Acronym Geek. February 15, 2012, 04:25. Available at: http://www.acronymgeek.com/NDID. Accessed February 15, 2012, 04:25. |