| APA | LYS. (2012, February 14). In Acronym Geek. Retrieved 19:29, February 14, 2012, from http://www.acronymgeek.com/LYS |
| MLA | "LYS." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/LYS>. |
| MHRA | 'LYS', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/LYS> [accessed 14 February 2012] |
| Chicago | "LYS", http://www.acronymgeek.com/LYS (accessed February 14, 2012). |
| CBE/CSE | LYS [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/LYS. |
| Bluebook | LYS, http://www.acronymgeek.com/LYS (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, LYS, http://www.acronymgeek.com/LYS (optional description here) (as of Feb. 14, 2012, 19:29). |
| AMA | LYS. Acronym Geek. February 14, 2012, 19:29. Available at: http://www.acronymgeek.com/LYS. Accessed February 14, 2012, 19:29. |