| APA | BTUB. (2012, February 16). In Acronym Geek. Retrieved 22:23, February 16, 2012, from http://www.acronymgeek.com/BTUB |
| MLA | "BTUB." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/BTUB>. |
| MHRA | 'BTUB', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/BTUB> [accessed 16 February 2012] |
| Chicago | "BTUB", http://www.acronymgeek.com/BTUB (accessed February 16, 2012). |
| CBE/CSE | BTUB [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/BTUB. |
| Bluebook | BTUB, http://www.acronymgeek.com/BTUB (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BTUB, http://www.acronymgeek.com/BTUB (optional description here) (as of Feb. 16, 2012, 22:23). |
| AMA | BTUB. Acronym Geek. February 16, 2012, 22:23. Available at: http://www.acronymgeek.com/BTUB. Accessed February 16, 2012, 22:23. |