| APA | BTBU. (2012, February 16). In Acronym Geek. Retrieved 04:12, February 16, 2012, from http://www.acronymgeek.com/BTBU |
| MLA | "BTBU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/BTBU>. |
| MHRA | 'BTBU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/BTBU> [accessed 16 February 2012] |
| Chicago | "BTBU", http://www.acronymgeek.com/BTBU (accessed February 16, 2012). |
| CBE/CSE | BTBU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/BTBU. |
| Bluebook | BTBU, http://www.acronymgeek.com/BTBU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BTBU, http://www.acronymgeek.com/BTBU (optional description here) (as of Feb. 16, 2012, 04:12). |
| AMA | BTBU. Acronym Geek. February 16, 2012, 04:12. Available at: http://www.acronymgeek.com/BTBU. Accessed February 16, 2012, 04:12. |