| APA | GTPL. (2012, February 15). In Acronym Geek. Retrieved 02:28, February 15, 2012, from http://www.acronymgeek.com/GTPL |
| MLA | "GTPL." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GTPL>. |
| MHRA | 'GTPL', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GTPL> [accessed 15 February 2012] |
| Chicago | "GTPL", http://www.acronymgeek.com/GTPL (accessed February 15, 2012). |
| CBE/CSE | GTPL [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GTPL. |
| Bluebook | GTPL, http://www.acronymgeek.com/GTPL (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GTPL, http://www.acronymgeek.com/GTPL (optional description here) (as of Feb. 15, 2012, 02:28). |
| AMA | GTPL. Acronym Geek. February 15, 2012, 02:28. Available at: http://www.acronymgeek.com/GTPL. Accessed February 15, 2012, 02:28. |