| APA | SPECIAL SYSTEM. (2012, February 11). In Acronym Geek. Retrieved 06:43, February 11, 2012, from http://www.acronymgeek.com/SPECIAL SYSTEM |
| MLA | "SPECIAL SYSTEM." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/SPECIAL SYSTEM>. |
| MHRA | 'SPECIAL SYSTEM', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/SPECIAL SYSTEM> [accessed 11 February 2012] |
| Chicago | "SPECIAL SYSTEM", http://www.acronymgeek.com/SPECIAL SYSTEM (accessed February 11, 2012). |
| CBE/CSE | SPECIAL SYSTEM [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/SPECIAL SYSTEM. |
| Bluebook | SPECIAL SYSTEM, http://www.acronymgeek.com/SPECIAL SYSTEM (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPECIAL SYSTEM, http://www.acronymgeek.com/SPECIAL SYSTEM (optional description here) (as of Feb. 11, 2012, 06:43). |
| AMA | SPECIAL SYSTEM. Acronym Geek. February 11, 2012, 06:43. Available at: http://www.acronymgeek.com/SPECIAL SYSTEM. Accessed February 11, 2012, 06:43. |