| APA | ULEO. (2012, February 14). In Acronym Geek. Retrieved 16:13, February 14, 2012, from http://www.acronymgeek.com/ULEO |
| MLA | "ULEO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ULEO>. |
| MHRA | 'ULEO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ULEO> [accessed 14 February 2012] |
| Chicago | "ULEO", http://www.acronymgeek.com/ULEO (accessed February 14, 2012). |
| CBE/CSE | ULEO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ULEO. |
| Bluebook | ULEO, http://www.acronymgeek.com/ULEO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ULEO, http://www.acronymgeek.com/ULEO (optional description here) (as of Feb. 14, 2012, 16:13). |
| AMA | ULEO. Acronym Geek. February 14, 2012, 16:13. Available at: http://www.acronymgeek.com/ULEO. Accessed February 14, 2012, 16:13. |