| APA | QHTD. (2012, February 16). In Acronym Geek. Retrieved 22:57, February 16, 2012, from http://www.acronymgeek.com/QHTD |
| MLA | "QHTD." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/QHTD>. |
| MHRA | 'QHTD', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/QHTD> [accessed 16 February 2012] |
| Chicago | "QHTD", http://www.acronymgeek.com/QHTD (accessed February 16, 2012). |
| CBE/CSE | QHTD [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/QHTD. |
| Bluebook | QHTD, http://www.acronymgeek.com/QHTD (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QHTD, http://www.acronymgeek.com/QHTD (optional description here) (as of Feb. 16, 2012, 22:57). |
| AMA | QHTD. Acronym Geek. February 16, 2012, 22:57. Available at: http://www.acronymgeek.com/QHTD. Accessed February 16, 2012, 22:57. |