| APA | UDEO. (2012, February 17). In Acronym Geek. Retrieved 03:33, February 17, 2012, from http://www.acronymgeek.com/UDEO |
| MLA | "UDEO." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/UDEO>. |
| MHRA | 'UDEO', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/UDEO> [accessed 17 February 2012] |
| Chicago | "UDEO", http://www.acronymgeek.com/UDEO (accessed February 17, 2012). |
| CBE/CSE | UDEO [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/UDEO. |
| Bluebook | UDEO, http://www.acronymgeek.com/UDEO (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UDEO, http://www.acronymgeek.com/UDEO (optional description here) (as of Feb. 17, 2012, 03:33). |
| AMA | UDEO. Acronym Geek. February 17, 2012, 03:33. Available at: http://www.acronymgeek.com/UDEO. Accessed February 17, 2012, 03:33. |