| APA | GBR. (2012, February 14). In Acronym Geek. Retrieved 09:39, February 14, 2012, from http://www.acronymgeek.com/GBR |
| MLA | "GBR." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GBR>. |
| MHRA | 'GBR', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GBR> [accessed 14 February 2012] |
| Chicago | "GBR", http://www.acronymgeek.com/GBR (accessed February 14, 2012). |
| CBE/CSE | GBR [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GBR. |
| Bluebook | GBR, http://www.acronymgeek.com/GBR (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GBR, http://www.acronymgeek.com/GBR (optional description here) (as of Feb. 14, 2012, 09:39). |
| AMA | GBR. Acronym Geek. February 14, 2012, 09:39. Available at: http://www.acronymgeek.com/GBR. Accessed February 14, 2012, 09:39. |