| APA | NRDU. (2012, February 15). In Acronym Geek. Retrieved 05:23, February 15, 2012, from http://www.acronymgeek.com/NRDU |
| MLA | "NRDU." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/NRDU>. |
| MHRA | 'NRDU', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/NRDU> [accessed 15 February 2012] |
| Chicago | "NRDU", http://www.acronymgeek.com/NRDU (accessed February 15, 2012). |
| CBE/CSE | NRDU [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/NRDU. |
| Bluebook | NRDU, http://www.acronymgeek.com/NRDU (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NRDU, http://www.acronymgeek.com/NRDU (optional description here) (as of Feb. 15, 2012, 05:23). |
| AMA | NRDU. Acronym Geek. February 15, 2012, 05:23. Available at: http://www.acronymgeek.com/NRDU. Accessed February 15, 2012, 05:23. |