| APA | GCT. (2012, February 9). In Acronym Geek. Retrieved 01:45, February 9, 2012, from http://www.acronymgeek.com/GCT |
| MLA | "GCT." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/GCT>. |
| MHRA | 'GCT', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/GCT> [accessed 9 February 2012] |
| Chicago | "GCT", http://www.acronymgeek.com/GCT (accessed February 9, 2012). |
| CBE/CSE | GCT [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/GCT. |
| Bluebook | GCT, http://www.acronymgeek.com/GCT (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GCT, http://www.acronymgeek.com/GCT (optional description here) (as of Feb. 9, 2012, 01:45). |
| AMA | GCT. Acronym Geek. February 9, 2012, 01:45. Available at: http://www.acronymgeek.com/GCT. Accessed February 9, 2012, 01:45. |