| APA | GFBU. (2012, February 15). In Acronym Geek. Retrieved 05:06, February 15, 2012, from http://www.acronymgeek.com/GFBU |
| MLA | "GFBU." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GFBU>. |
| MHRA | 'GFBU', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GFBU> [accessed 15 February 2012] |
| Chicago | "GFBU", http://www.acronymgeek.com/GFBU (accessed February 15, 2012). |
| CBE/CSE | GFBU [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GFBU. |
| Bluebook | GFBU, http://www.acronymgeek.com/GFBU (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GFBU, http://www.acronymgeek.com/GFBU (optional description here) (as of Feb. 15, 2012, 05:06). |
| AMA | GFBU. Acronym Geek. February 15, 2012, 05:06. Available at: http://www.acronymgeek.com/GFBU. Accessed February 15, 2012, 05:06. |