| APA | BTHEOL. (2012, February 10). In Acronym Geek. Retrieved 13:23, February 10, 2012, from http://www.acronymgeek.com/BTHEOL |
| MLA | "BTHEOL." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/BTHEOL>. |
| MHRA | 'BTHEOL', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/BTHEOL> [accessed 10 February 2012] |
| Chicago | "BTHEOL", http://www.acronymgeek.com/BTHEOL (accessed February 10, 2012). |
| CBE/CSE | BTHEOL [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/BTHEOL. |
| Bluebook | BTHEOL, http://www.acronymgeek.com/BTHEOL (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BTHEOL, http://www.acronymgeek.com/BTHEOL (optional description here) (as of Feb. 10, 2012, 13:23). |
| AMA | BTHEOL. Acronym Geek. February 10, 2012, 13:23. Available at: http://www.acronymgeek.com/BTHEOL. Accessed February 10, 2012, 13:23. |