| APA | 4GT. (2012, February 11). In Acronym Geek. Retrieved 18:08, February 11, 2012, from http://www.acronymgeek.com/4GT |
| MLA | "4GT." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/4GT>. |
| MHRA | '4GT', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/4GT> [accessed 11 February 2012] |
| Chicago | "4GT", http://www.acronymgeek.com/4GT (accessed February 11, 2012). |
| CBE/CSE | 4GT [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/4GT. |
| Bluebook | 4GT, http://www.acronymgeek.com/4GT (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 4GT, http://www.acronymgeek.com/4GT (optional description here) (as of Feb. 11, 2012, 18:08). |
| AMA | 4GT. Acronym Geek. February 11, 2012, 18:08. Available at: http://www.acronymgeek.com/4GT. Accessed February 11, 2012, 18:08. |