| APA | UREO. (2012, February 15). In Acronym Geek. Retrieved 23:09, February 15, 2012, from http://www.acronymgeek.com/UREO |
| MLA | "UREO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/UREO>. |
| MHRA | 'UREO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/UREO> [accessed 15 February 2012] |
| Chicago | "UREO", http://www.acronymgeek.com/UREO (accessed February 15, 2012). |
| CBE/CSE | UREO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/UREO. |
| Bluebook | UREO, http://www.acronymgeek.com/UREO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UREO, http://www.acronymgeek.com/UREO (optional description here) (as of Feb. 15, 2012, 23:09). |
| AMA | UREO. Acronym Geek. February 15, 2012, 23:09. Available at: http://www.acronymgeek.com/UREO. Accessed February 15, 2012, 23:09. |