| APA | HBHD. (2012, February 16). In Acronym Geek. Retrieved 02:30, February 16, 2012, from http://www.acronymgeek.com/HBHD |
| MLA | "HBHD." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/HBHD>. |
| MHRA | 'HBHD', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/HBHD> [accessed 16 February 2012] |
| Chicago | "HBHD", http://www.acronymgeek.com/HBHD (accessed February 16, 2012). |
| CBE/CSE | HBHD [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/HBHD. |
| Bluebook | HBHD, http://www.acronymgeek.com/HBHD (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HBHD, http://www.acronymgeek.com/HBHD (optional description here) (as of Feb. 16, 2012, 02:30). |
| AMA | HBHD. Acronym Geek. February 16, 2012, 02:30. Available at: http://www.acronymgeek.com/HBHD. Accessed February 16, 2012, 02:30. |