| APA | LDOO. (2012, February 16). In Acronym Geek. Retrieved 01:51, February 16, 2012, from http://www.acronymgeek.com/LDOO |
| MLA | "LDOO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/LDOO>. |
| MHRA | 'LDOO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/LDOO> [accessed 16 February 2012] |
| Chicago | "LDOO", http://www.acronymgeek.com/LDOO (accessed February 16, 2012). |
| CBE/CSE | LDOO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/LDOO. |
| Bluebook | LDOO, http://www.acronymgeek.com/LDOO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, LDOO, http://www.acronymgeek.com/LDOO (optional description here) (as of Feb. 16, 2012, 01:51). |
| AMA | LDOO. Acronym Geek. February 16, 2012, 01:51. Available at: http://www.acronymgeek.com/LDOO. Accessed February 16, 2012, 01:51. |