| APA | GBRT. (2012, February 16). In Acronym Geek. Retrieved 05:34, February 16, 2012, from http://www.acronymgeek.com/GBRT |
| MLA | "GBRT." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GBRT>. |
| MHRA | 'GBRT', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GBRT> [accessed 16 February 2012] |
| Chicago | "GBRT", http://www.acronymgeek.com/GBRT (accessed February 16, 2012). |
| CBE/CSE | GBRT [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GBRT. |
| Bluebook | GBRT, http://www.acronymgeek.com/GBRT (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GBRT, http://www.acronymgeek.com/GBRT (optional description here) (as of Feb. 16, 2012, 05:34). |
| AMA | GBRT. Acronym Geek. February 16, 2012, 05:34. Available at: http://www.acronymgeek.com/GBRT. Accessed February 16, 2012, 05:34. |