| APA | BTEF. (2012, February 17). In Acronym Geek. Retrieved 05:35, February 17, 2012, from http://www.acronymgeek.com/BTEF |
| MLA | "BTEF." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/BTEF>. |
| MHRA | 'BTEF', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/BTEF> [accessed 17 February 2012] |
| Chicago | "BTEF", http://www.acronymgeek.com/BTEF (accessed February 17, 2012). |
| CBE/CSE | BTEF [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/BTEF. |
| Bluebook | BTEF, http://www.acronymgeek.com/BTEF (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BTEF, http://www.acronymgeek.com/BTEF (optional description here) (as of Feb. 17, 2012, 05:35). |
| AMA | BTEF. Acronym Geek. February 17, 2012, 05:35. Available at: http://www.acronymgeek.com/BTEF. Accessed February 17, 2012, 05:35. |