| APA | UMDO. (2012, February 17). In Acronym Geek. Retrieved 08:06, February 17, 2012, from http://www.acronymgeek.com/UMDO |
| MLA | "UMDO." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/UMDO>. |
| MHRA | 'UMDO', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/UMDO> [accessed 17 February 2012] |
| Chicago | "UMDO", http://www.acronymgeek.com/UMDO (accessed February 17, 2012). |
| CBE/CSE | UMDO [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/UMDO. |
| Bluebook | UMDO, http://www.acronymgeek.com/UMDO (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UMDO, http://www.acronymgeek.com/UMDO (optional description here) (as of Feb. 17, 2012, 08:06). |
| AMA | UMDO. Acronym Geek. February 17, 2012, 08:06. Available at: http://www.acronymgeek.com/UMDO. Accessed February 17, 2012, 08:06. |