| APA | QLDO. (2012, February 16). In Acronym Geek. Retrieved 03:04, February 16, 2012, from http://www.acronymgeek.com/QLDO |
| MLA | "QLDO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/QLDO>. |
| MHRA | 'QLDO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/QLDO> [accessed 16 February 2012] |
| Chicago | "QLDO", http://www.acronymgeek.com/QLDO (accessed February 16, 2012). |
| CBE/CSE | QLDO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/QLDO. |
| Bluebook | QLDO, http://www.acronymgeek.com/QLDO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QLDO, http://www.acronymgeek.com/QLDO (optional description here) (as of Feb. 16, 2012, 03:04). |
| AMA | QLDO. Acronym Geek. February 16, 2012, 03:04. Available at: http://www.acronymgeek.com/QLDO. Accessed February 16, 2012, 03:04. |