| APA | GTPS. (2012, February 15). In Acronym Geek. Retrieved 12:33, February 15, 2012, from http://www.acronymgeek.com/GTPS |
| MLA | "GTPS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GTPS>. |
| MHRA | 'GTPS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GTPS> [accessed 15 February 2012] |
| Chicago | "GTPS", http://www.acronymgeek.com/GTPS (accessed February 15, 2012). |
| CBE/CSE | GTPS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GTPS. |
| Bluebook | GTPS, http://www.acronymgeek.com/GTPS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GTPS, http://www.acronymgeek.com/GTPS (optional description here) (as of Feb. 15, 2012, 12:33). |
| AMA | GTPS. Acronym Geek. February 15, 2012, 12:33. Available at: http://www.acronymgeek.com/GTPS. Accessed February 15, 2012, 12:33. |