| APA | HSDH. (2012, February 15). In Acronym Geek. Retrieved 12:44, February 15, 2012, from http://www.acronymgeek.com/HSDH |
| MLA | "HSDH." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HSDH>. |
| MHRA | 'HSDH', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HSDH> [accessed 15 February 2012] |
| Chicago | "HSDH", http://www.acronymgeek.com/HSDH (accessed February 15, 2012). |
| CBE/CSE | HSDH [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HSDH. |
| Bluebook | HSDH, http://www.acronymgeek.com/HSDH (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HSDH, http://www.acronymgeek.com/HSDH (optional description here) (as of Feb. 15, 2012, 12:44). |
| AMA | HSDH. Acronym Geek. February 15, 2012, 12:44. Available at: http://www.acronymgeek.com/HSDH. Accessed February 15, 2012, 12:44. |