| APA | GTG. (2012, February 14). In Acronym Geek. Retrieved 06:25, February 14, 2012, from http://www.acronymgeek.com/GTG |
| MLA | "GTG." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GTG>. |
| MHRA | 'GTG', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GTG> [accessed 14 February 2012] |
| Chicago | "GTG", http://www.acronymgeek.com/GTG (accessed February 14, 2012). |
| CBE/CSE | GTG [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GTG. |
| Bluebook | GTG, http://www.acronymgeek.com/GTG (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GTG, http://www.acronymgeek.com/GTG (optional description here) (as of Feb. 14, 2012, 06:25). |
| AMA | GTG. Acronym Geek. February 14, 2012, 06:25. Available at: http://www.acronymgeek.com/GTG. Accessed February 14, 2012, 06:25. |