| APA | UNDB. (2012, February 15). In Acronym Geek. Retrieved 11:34, February 15, 2012, from http://www.acronymgeek.com/UNDB |
| MLA | "UNDB." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/UNDB>. |
| MHRA | 'UNDB', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/UNDB> [accessed 15 February 2012] |
| Chicago | "UNDB", http://www.acronymgeek.com/UNDB (accessed February 15, 2012). |
| CBE/CSE | UNDB [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/UNDB. |
| Bluebook | UNDB, http://www.acronymgeek.com/UNDB (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UNDB, http://www.acronymgeek.com/UNDB (optional description here) (as of Feb. 15, 2012, 11:34). |
| AMA | UNDB. Acronym Geek. February 15, 2012, 11:34. Available at: http://www.acronymgeek.com/UNDB. Accessed February 15, 2012, 11:34. |