| APA | QDHK. (2012, February 16). In Acronym Geek. Retrieved 21:20, February 16, 2012, from http://www.acronymgeek.com/QDHK |
| MLA | "QDHK." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/QDHK>. |
| MHRA | 'QDHK', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/QDHK> [accessed 16 February 2012] |
| Chicago | "QDHK", http://www.acronymgeek.com/QDHK (accessed February 16, 2012). |
| CBE/CSE | QDHK [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/QDHK. |
| Bluebook | QDHK, http://www.acronymgeek.com/QDHK (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QDHK, http://www.acronymgeek.com/QDHK (optional description here) (as of Feb. 16, 2012, 21:20). |
| AMA | QDHK. Acronym Geek. February 16, 2012, 21:20. Available at: http://www.acronymgeek.com/QDHK. Accessed February 16, 2012, 21:20. |