| APA | GTB. (2012, February 15). In Acronym Geek. Retrieved 03:46, February 15, 2012, from http://www.acronymgeek.com/GTB |
| MLA | "GTB." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GTB>. |
| MHRA | 'GTB', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GTB> [accessed 15 February 2012] |
| Chicago | "GTB", http://www.acronymgeek.com/GTB (accessed February 15, 2012). |
| CBE/CSE | GTB [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GTB. |
| Bluebook | GTB, http://www.acronymgeek.com/GTB (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GTB, http://www.acronymgeek.com/GTB (optional description here) (as of Feb. 15, 2012, 03:46). |
| AMA | GTB. Acronym Geek. February 15, 2012, 03:46. Available at: http://www.acronymgeek.com/GTB. Accessed February 15, 2012, 03:46. |