| APA | QSDH. (2012, February 17). In Acronym Geek. Retrieved 06:58, February 17, 2012, from http://www.acronymgeek.com/QSDH |
| MLA | "QSDH." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/QSDH>. |
| MHRA | 'QSDH', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/QSDH> [accessed 17 February 2012] |
| Chicago | "QSDH", http://www.acronymgeek.com/QSDH (accessed February 17, 2012). |
| CBE/CSE | QSDH [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/QSDH. |
| Bluebook | QSDH, http://www.acronymgeek.com/QSDH (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QSDH, http://www.acronymgeek.com/QSDH (optional description here) (as of Feb. 17, 2012, 06:58). |
| AMA | QSDH. Acronym Geek. February 17, 2012, 06:58. Available at: http://www.acronymgeek.com/QSDH. Accessed February 17, 2012, 06:58. |