| APA | FDBU. (2012, February 16). In Acronym Geek. Retrieved 03:45, February 16, 2012, from http://www.acronymgeek.com/FDBU |
| MLA | "FDBU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/FDBU>. |
| MHRA | 'FDBU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/FDBU> [accessed 16 February 2012] |
| Chicago | "FDBU", http://www.acronymgeek.com/FDBU (accessed February 16, 2012). |
| CBE/CSE | FDBU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/FDBU. |
| Bluebook | FDBU, http://www.acronymgeek.com/FDBU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FDBU, http://www.acronymgeek.com/FDBU (optional description here) (as of Feb. 16, 2012, 03:45). |
| AMA | FDBU. Acronym Geek. February 16, 2012, 03:45. Available at: http://www.acronymgeek.com/FDBU. Accessed February 16, 2012, 03:45. |