| APA | GSP. (2012, February 14). In Acronym Geek. Retrieved 06:35, February 14, 2012, from http://www.acronymgeek.com/GSP |
| MLA | "GSP." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GSP>. |
| MHRA | 'GSP', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GSP> [accessed 14 February 2012] |
| Chicago | "GSP", http://www.acronymgeek.com/GSP (accessed February 14, 2012). |
| CBE/CSE | GSP [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GSP. |
| Bluebook | GSP, http://www.acronymgeek.com/GSP (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GSP, http://www.acronymgeek.com/GSP (optional description here) (as of Feb. 14, 2012, 06:35). |
| AMA | GSP. Acronym Geek. February 14, 2012, 06:35. Available at: http://www.acronymgeek.com/GSP. Accessed February 14, 2012, 06:35. |