| APA | NDUS. (2012, February 15). In Acronym Geek. Retrieved 04:38, February 15, 2012, from http://www.acronymgeek.com/NDUS |
| MLA | "NDUS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/NDUS>. |
| MHRA | 'NDUS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/NDUS> [accessed 15 February 2012] |
| Chicago | "NDUS", http://www.acronymgeek.com/NDUS (accessed February 15, 2012). |
| CBE/CSE | NDUS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/NDUS. |
| Bluebook | NDUS, http://www.acronymgeek.com/NDUS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NDUS, http://www.acronymgeek.com/NDUS (optional description here) (as of Feb. 15, 2012, 04:38). |
| AMA | NDUS. Acronym Geek. February 15, 2012, 04:38. Available at: http://www.acronymgeek.com/NDUS. Accessed February 15, 2012, 04:38. |