| APA | GTT. (2012, February 13). In Acronym Geek. Retrieved 21:22, February 13, 2012, from http://www.acronymgeek.com/GTT |
| MLA | "GTT." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/GTT>. |
| MHRA | 'GTT', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/GTT> [accessed 13 February 2012] |
| Chicago | "GTT", http://www.acronymgeek.com/GTT (accessed February 13, 2012). |
| CBE/CSE | GTT [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/GTT. |
| Bluebook | GTT, http://www.acronymgeek.com/GTT (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GTT, http://www.acronymgeek.com/GTT (optional description here) (as of Feb. 13, 2012, 21:22). |
| AMA | GTT. Acronym Geek. February 13, 2012, 21:22. Available at: http://www.acronymgeek.com/GTT. Accessed February 13, 2012, 21:22. |