| APA | GSSD. (2012, February 15). In Acronym Geek. Retrieved 16:34, February 15, 2012, from http://www.acronymgeek.com/GSSD |
| MLA | "GSSD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GSSD>. |
| MHRA | 'GSSD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GSSD> [accessed 15 February 2012] |
| Chicago | "GSSD", http://www.acronymgeek.com/GSSD (accessed February 15, 2012). |
| CBE/CSE | GSSD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GSSD. |
| Bluebook | GSSD, http://www.acronymgeek.com/GSSD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GSSD, http://www.acronymgeek.com/GSSD (optional description here) (as of Feb. 15, 2012, 16:34). |
| AMA | GSSD. Acronym Geek. February 15, 2012, 16:34. Available at: http://www.acronymgeek.com/GSSD. Accessed February 15, 2012, 16:34. |