| APA | LDFU. (2012, February 15). In Acronym Geek. Retrieved 12:15, February 15, 2012, from http://www.acronymgeek.com/LDFU |
| MLA | "LDFU." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/LDFU>. |
| MHRA | 'LDFU', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/LDFU> [accessed 15 February 2012] |
| Chicago | "LDFU", http://www.acronymgeek.com/LDFU (accessed February 15, 2012). |
| CBE/CSE | LDFU [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/LDFU. |
| Bluebook | LDFU, http://www.acronymgeek.com/LDFU (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, LDFU, http://www.acronymgeek.com/LDFU (optional description here) (as of Feb. 15, 2012, 12:15). |
| AMA | LDFU. Acronym Geek. February 15, 2012, 12:15. Available at: http://www.acronymgeek.com/LDFU. Accessed February 15, 2012, 12:15. |