| APA | LDYS. (2012, February 16). In Acronym Geek. Retrieved 02:02, February 16, 2012, from http://www.acronymgeek.com/LDYS |
| MLA | "LDYS." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/LDYS>. |
| MHRA | 'LDYS', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/LDYS> [accessed 16 February 2012] |
| Chicago | "LDYS", http://www.acronymgeek.com/LDYS (accessed February 16, 2012). |
| CBE/CSE | LDYS [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/LDYS. |
| Bluebook | LDYS, http://www.acronymgeek.com/LDYS (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, LDYS, http://www.acronymgeek.com/LDYS (optional description here) (as of Feb. 16, 2012, 02:02). |
| AMA | LDYS. Acronym Geek. February 16, 2012, 02:02. Available at: http://www.acronymgeek.com/LDYS. Accessed February 16, 2012, 02:02. |