| APA | LDU. (2012, February 14). In Acronym Geek. Retrieved 11:16, February 14, 2012, from http://www.acronymgeek.com/LDU |
| MLA | "LDU." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/LDU>. |
| MHRA | 'LDU', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/LDU> [accessed 14 February 2012] |
| Chicago | "LDU", http://www.acronymgeek.com/LDU (accessed February 14, 2012). |
| CBE/CSE | LDU [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/LDU. |
| Bluebook | LDU, http://www.acronymgeek.com/LDU (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, LDU, http://www.acronymgeek.com/LDU (optional description here) (as of Feb. 14, 2012, 11:16). |
| AMA | LDU. Acronym Geek. February 14, 2012, 11:16. Available at: http://www.acronymgeek.com/LDU. Accessed February 14, 2012, 11:16. |