| APA | BTG. (2012, February 14). In Acronym Geek. Retrieved 04:20, February 14, 2012, from http://www.acronymgeek.com/BTG |
| MLA | "BTG." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/BTG>. |
| MHRA | 'BTG', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/BTG> [accessed 14 February 2012] |
| Chicago | "BTG", http://www.acronymgeek.com/BTG (accessed February 14, 2012). |
| CBE/CSE | BTG [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/BTG. |
| Bluebook | BTG, http://www.acronymgeek.com/BTG (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BTG, http://www.acronymgeek.com/BTG (optional description here) (as of Feb. 14, 2012, 04:20). |
| AMA | BTG. Acronym Geek. February 14, 2012, 04:20. Available at: http://www.acronymgeek.com/BTG. Accessed February 14, 2012, 04:20. |