| APA | LEUO. (2012, February 15). In Acronym Geek. Retrieved 19:23, February 15, 2012, from http://www.acronymgeek.com/LEUO |
| MLA | "LEUO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/LEUO>. |
| MHRA | 'LEUO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/LEUO> [accessed 15 February 2012] |
| Chicago | "LEUO", http://www.acronymgeek.com/LEUO (accessed February 15, 2012). |
| CBE/CSE | LEUO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/LEUO. |
| Bluebook | LEUO, http://www.acronymgeek.com/LEUO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, LEUO, http://www.acronymgeek.com/LEUO (optional description here) (as of Feb. 15, 2012, 19:23). |
| AMA | LEUO. Acronym Geek. February 15, 2012, 19:23. Available at: http://www.acronymgeek.com/LEUO. Accessed February 15, 2012, 19:23. |