| APA | HTOB. (2012, February 16). In Acronym Geek. Retrieved 19:48, February 16, 2012, from http://www.acronymgeek.com/HTOB |
| MLA | "HTOB." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/HTOB>. |
| MHRA | 'HTOB', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/HTOB> [accessed 16 February 2012] |
| Chicago | "HTOB", http://www.acronymgeek.com/HTOB (accessed February 16, 2012). |
| CBE/CSE | HTOB [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/HTOB. |
| Bluebook | HTOB, http://www.acronymgeek.com/HTOB (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HTOB, http://www.acronymgeek.com/HTOB (optional description here) (as of Feb. 16, 2012, 19:48). |
| AMA | HTOB. Acronym Geek. February 16, 2012, 19:48. Available at: http://www.acronymgeek.com/HTOB. Accessed February 16, 2012, 19:48. |