| APA | GSIL. (2012, February 15). In Acronym Geek. Retrieved 04:02, February 15, 2012, from http://www.acronymgeek.com/GSIL |
| MLA | "GSIL." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GSIL>. |
| MHRA | 'GSIL', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GSIL> [accessed 15 February 2012] |
| Chicago | "GSIL", http://www.acronymgeek.com/GSIL (accessed February 15, 2012). |
| CBE/CSE | GSIL [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GSIL. |
| Bluebook | GSIL, http://www.acronymgeek.com/GSIL (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GSIL, http://www.acronymgeek.com/GSIL (optional description here) (as of Feb. 15, 2012, 04:02). |
| AMA | GSIL. Acronym Geek. February 15, 2012, 04:02. Available at: http://www.acronymgeek.com/GSIL. Accessed February 15, 2012, 04:02. |