| APA | GSO. (2012, February 14). In Acronym Geek. Retrieved 10:08, February 14, 2012, from http://www.acronymgeek.com/GSO |
| MLA | "GSO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GSO>. |
| MHRA | 'GSO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GSO> [accessed 14 February 2012] |
| Chicago | "GSO", http://www.acronymgeek.com/GSO (accessed February 14, 2012). |
| CBE/CSE | GSO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GSO. |
| Bluebook | GSO, http://www.acronymgeek.com/GSO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GSO, http://www.acronymgeek.com/GSO (optional description here) (as of Feb. 14, 2012, 10:08). |
| AMA | GSO. Acronym Geek. February 14, 2012, 10:08. Available at: http://www.acronymgeek.com/GSO. Accessed February 14, 2012, 10:08. |