| APA | SYNS. (2012, February 16). In Acronym Geek. Retrieved 22:44, February 16, 2012, from http://www.acronymgeek.com/SYNS |
| MLA | "SYNS." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/SYNS>. |
| MHRA | 'SYNS', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/SYNS> [accessed 16 February 2012] |
| Chicago | "SYNS", http://www.acronymgeek.com/SYNS (accessed February 16, 2012). |
| CBE/CSE | SYNS [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/SYNS. |
| Bluebook | SYNS, http://www.acronymgeek.com/SYNS (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SYNS, http://www.acronymgeek.com/SYNS (optional description here) (as of Feb. 16, 2012, 22:44). |
| AMA | SYNS. Acronym Geek. February 16, 2012, 22:44. Available at: http://www.acronymgeek.com/SYNS. Accessed February 16, 2012, 22:44. |