| APA | BTX. (2012, February 10). In Acronym Geek. Retrieved 17:17, February 10, 2012, from http://www.acronymgeek.com/BTX |
| MLA | "BTX." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/BTX>. |
| MHRA | 'BTX', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/BTX> [accessed 10 February 2012] |
| Chicago | "BTX", http://www.acronymgeek.com/BTX (accessed February 10, 2012). |
| CBE/CSE | BTX [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/BTX. |
| Bluebook | BTX, http://www.acronymgeek.com/BTX (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BTX, http://www.acronymgeek.com/BTX (optional description here) (as of Feb. 10, 2012, 17:17). |
| AMA | BTX. Acronym Geek. February 10, 2012, 17:17. Available at: http://www.acronymgeek.com/BTX. Accessed February 10, 2012, 17:17. |