| APA | BTW. (2012, February 8). In Acronym Geek. Retrieved 20:05, February 8, 2012, from http://www.acronymgeek.com/BTW |
| MLA | "BTW." Acronym Geek. (2012). Acronym Geek. 8 Feb 2012 <http://www.acronymgeek.com/BTW>. |
| MHRA | 'BTW', Acronym Geek, 8 February 2012, <http://www.acronymgeek.com/BTW> [accessed 8 February 2012] |
| Chicago | "BTW", http://www.acronymgeek.com/BTW (accessed February 8, 2012). |
| CBE/CSE | BTW [Internet]. Acronym Geek; 2012 Feb 8 [cited 2012 Feb 8]. Available from: http://www.acronymgeek.com/BTW. |
| Bluebook | BTW, http://www.acronymgeek.com/BTW (last visited February 8, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BTW, http://www.acronymgeek.com/BTW (optional description here) (as of Feb. 8, 2012, 20:05). |
| AMA | BTW. Acronym Geek. February 8, 2012, 20:05. Available at: http://www.acronymgeek.com/BTW. Accessed February 8, 2012, 20:05. |