| APA | GSOP. (2012, February 16). In Acronym Geek. Retrieved 04:52, February 16, 2012, from http://www.acronymgeek.com/GSOP |
| MLA | "GSOP." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GSOP>. |
| MHRA | 'GSOP', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GSOP> [accessed 16 February 2012] |
| Chicago | "GSOP", http://www.acronymgeek.com/GSOP (accessed February 16, 2012). |
| CBE/CSE | GSOP [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GSOP. |
| Bluebook | GSOP, http://www.acronymgeek.com/GSOP (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GSOP, http://www.acronymgeek.com/GSOP (optional description here) (as of Feb. 16, 2012, 04:52). |
| AMA | GSOP. Acronym Geek. February 16, 2012, 04:52. Available at: http://www.acronymgeek.com/GSOP. Accessed February 16, 2012, 04:52. |