| APA | QDIR. (2012, February 15). In Acronym Geek. Retrieved 23:55, February 15, 2012, from http://www.acronymgeek.com/QDIR |
| MLA | "QDIR." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/QDIR>. |
| MHRA | 'QDIR', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/QDIR> [accessed 15 February 2012] |
| Chicago | "QDIR", http://www.acronymgeek.com/QDIR (accessed February 15, 2012). |
| CBE/CSE | QDIR [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/QDIR. |
| Bluebook | QDIR, http://www.acronymgeek.com/QDIR (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QDIR, http://www.acronymgeek.com/QDIR (optional description here) (as of Feb. 15, 2012, 23:55). |
| AMA | QDIR. Acronym Geek. February 15, 2012, 23:55. Available at: http://www.acronymgeek.com/QDIR. Accessed February 15, 2012, 23:55. |