| APA | ZUD. (2012, February 10). In Acronym Geek. Retrieved 11:09, February 10, 2012, from http://www.acronymgeek.com/ZUD |
| MLA | "ZUD." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/ZUD>. |
| MHRA | 'ZUD', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/ZUD> [accessed 10 February 2012] |
| Chicago | "ZUD", http://www.acronymgeek.com/ZUD (accessed February 10, 2012). |
| CBE/CSE | ZUD [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/ZUD. |
| Bluebook | ZUD, http://www.acronymgeek.com/ZUD (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ZUD, http://www.acronymgeek.com/ZUD (optional description here) (as of Feb. 10, 2012, 11:09). |
| AMA | ZUD. Acronym Geek. February 10, 2012, 11:09. Available at: http://www.acronymgeek.com/ZUD. Accessed February 10, 2012, 11:09. |