| APA | LEDN. (2012, February 17). In Acronym Geek. Retrieved 07:55, February 17, 2012, from http://www.acronymgeek.com/LEDN |
| MLA | "LEDN." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/LEDN>. |
| MHRA | 'LEDN', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/LEDN> [accessed 17 February 2012] |
| Chicago | "LEDN", http://www.acronymgeek.com/LEDN (accessed February 17, 2012). |
| CBE/CSE | LEDN [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/LEDN. |
| Bluebook | LEDN, http://www.acronymgeek.com/LEDN (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, LEDN, http://www.acronymgeek.com/LEDN (optional description here) (as of Feb. 17, 2012, 07:55). |
| AMA | LEDN. Acronym Geek. February 17, 2012, 07:55. Available at: http://www.acronymgeek.com/LEDN. Accessed February 17, 2012, 07:55. |