| APA | DDDL. (2012, February 17). In Acronym Geek. Retrieved 02:42, February 17, 2012, from http://www.acronymgeek.com/DDDL |
| MLA | "DDDL." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/DDDL>. |
| MHRA | 'DDDL', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/DDDL> [accessed 17 February 2012] |
| Chicago | "DDDL", http://www.acronymgeek.com/DDDL (accessed February 17, 2012). |
| CBE/CSE | DDDL [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/DDDL. |
| Bluebook | DDDL, http://www.acronymgeek.com/DDDL (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DDDL, http://www.acronymgeek.com/DDDL (optional description here) (as of Feb. 17, 2012, 02:42). |
| AMA | DDDL. Acronym Geek. February 17, 2012, 02:42. Available at: http://www.acronymgeek.com/DDDL. Accessed February 17, 2012, 02:42. |