| APA | GSEI. (2012, February 14). In Acronym Geek. Retrieved 13:35, February 14, 2012, from http://www.acronymgeek.com/GSEI |
| MLA | "GSEI." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GSEI>. |
| MHRA | 'GSEI', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GSEI> [accessed 14 February 2012] |
| Chicago | "GSEI", http://www.acronymgeek.com/GSEI (accessed February 14, 2012). |
| CBE/CSE | GSEI [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GSEI. |
| Bluebook | GSEI, http://www.acronymgeek.com/GSEI (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GSEI, http://www.acronymgeek.com/GSEI (optional description here) (as of Feb. 14, 2012, 13:35). |
| AMA | GSEI. Acronym Geek. February 14, 2012, 13:35. Available at: http://www.acronymgeek.com/GSEI. Accessed February 14, 2012, 13:35. |