| APA | HTBD. (2012, February 15). In Acronym Geek. Retrieved 11:01, February 15, 2012, from http://www.acronymgeek.com/HTBD |
| MLA | "HTBD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HTBD>. |
| MHRA | 'HTBD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HTBD> [accessed 15 February 2012] |
| Chicago | "HTBD", http://www.acronymgeek.com/HTBD (accessed February 15, 2012). |
| CBE/CSE | HTBD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HTBD. |
| Bluebook | HTBD, http://www.acronymgeek.com/HTBD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HTBD, http://www.acronymgeek.com/HTBD (optional description here) (as of Feb. 15, 2012, 11:01). |
| AMA | HTBD. Acronym Geek. February 15, 2012, 11:01. Available at: http://www.acronymgeek.com/HTBD. Accessed February 15, 2012, 11:01. |