| APA | CLYS. (2012, February 16). In Acronym Geek. Retrieved 08:10, February 16, 2012, from http://www.acronymgeek.com/CLYS |
| MLA | "CLYS." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/CLYS>. |
| MHRA | 'CLYS', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/CLYS> [accessed 16 February 2012] |
| Chicago | "CLYS", http://www.acronymgeek.com/CLYS (accessed February 16, 2012). |
| CBE/CSE | CLYS [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/CLYS. |
| Bluebook | CLYS, http://www.acronymgeek.com/CLYS (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CLYS, http://www.acronymgeek.com/CLYS (optional description here) (as of Feb. 16, 2012, 08:10). |
| AMA | CLYS. Acronym Geek. February 16, 2012, 08:10. Available at: http://www.acronymgeek.com/CLYS. Accessed February 16, 2012, 08:10. |