| APA | LDUL. (2012, February 14). In Acronym Geek. Retrieved 17:59, February 14, 2012, from http://www.acronymgeek.com/LDUL |
| MLA | "LDUL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/LDUL>. |
| MHRA | 'LDUL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/LDUL> [accessed 14 February 2012] |
| Chicago | "LDUL", http://www.acronymgeek.com/LDUL (accessed February 14, 2012). |
| CBE/CSE | LDUL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/LDUL. |
| Bluebook | LDUL, http://www.acronymgeek.com/LDUL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, LDUL, http://www.acronymgeek.com/LDUL (optional description here) (as of Feb. 14, 2012, 17:59). |
| AMA | LDUL. Acronym Geek. February 14, 2012, 17:59. Available at: http://www.acronymgeek.com/LDUL. Accessed February 14, 2012, 17:59. |