| APA | HDQH. (2012, February 14). In Acronym Geek. Retrieved 20:57, February 14, 2012, from http://www.acronymgeek.com/HDQH |
| MLA | "HDQH." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HDQH>. |
| MHRA | 'HDQH', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HDQH> [accessed 14 February 2012] |
| Chicago | "HDQH", http://www.acronymgeek.com/HDQH (accessed February 14, 2012). |
| CBE/CSE | HDQH [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HDQH. |
| Bluebook | HDQH, http://www.acronymgeek.com/HDQH (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HDQH, http://www.acronymgeek.com/HDQH (optional description here) (as of Feb. 14, 2012, 20:57). |
| AMA | HDQH. Acronym Geek. February 14, 2012, 20:57. Available at: http://www.acronymgeek.com/HDQH. Accessed February 14, 2012, 20:57. |