| APA | TGS. (2012, February 13). In Acronym Geek. Retrieved 22:35, February 13, 2012, from http://www.acronymgeek.com/TGS |
| MLA | "TGS." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/TGS>. |
| MHRA | 'TGS', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/TGS> [accessed 13 February 2012] |
| Chicago | "TGS", http://www.acronymgeek.com/TGS (accessed February 13, 2012). |
| CBE/CSE | TGS [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/TGS. |
| Bluebook | TGS, http://www.acronymgeek.com/TGS (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TGS, http://www.acronymgeek.com/TGS (optional description here) (as of Feb. 13, 2012, 22:35). |
| AMA | TGS. Acronym Geek. February 13, 2012, 22:35. Available at: http://www.acronymgeek.com/TGS. Accessed February 13, 2012, 22:35. |