| APA | NDUM. (2012, February 15). In Acronym Geek. Retrieved 10:42, February 15, 2012, from http://www.acronymgeek.com/NDUM |
| MLA | "NDUM." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/NDUM>. |
| MHRA | 'NDUM', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/NDUM> [accessed 15 February 2012] |
| Chicago | "NDUM", http://www.acronymgeek.com/NDUM (accessed February 15, 2012). |
| CBE/CSE | NDUM [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/NDUM. |
| Bluebook | NDUM, http://www.acronymgeek.com/NDUM (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NDUM, http://www.acronymgeek.com/NDUM (optional description here) (as of Feb. 15, 2012, 10:42). |
| AMA | NDUM. Acronym Geek. February 15, 2012, 10:42. Available at: http://www.acronymgeek.com/NDUM. Accessed February 15, 2012, 10:42. |