| APA | BTH. (2012, February 9). In Acronym Geek. Retrieved 20:40, February 9, 2012, from http://www.acronymgeek.com/BTH |
| MLA | "BTH." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/BTH>. |
| MHRA | 'BTH', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/BTH> [accessed 9 February 2012] |
| Chicago | "BTH", http://www.acronymgeek.com/BTH (accessed February 9, 2012). |
| CBE/CSE | BTH [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/BTH. |
| Bluebook | BTH, http://www.acronymgeek.com/BTH (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BTH, http://www.acronymgeek.com/BTH (optional description here) (as of Feb. 9, 2012, 20:40). |
| AMA | BTH. Acronym Geek. February 9, 2012, 20:40. Available at: http://www.acronymgeek.com/BTH. Accessed February 9, 2012, 20:40. |