| APA | QDDQ. (2012, February 16). In Acronym Geek. Retrieved 12:24, February 16, 2012, from http://www.acronymgeek.com/QDDQ |
| MLA | "QDDQ." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/QDDQ>. |
| MHRA | 'QDDQ', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/QDDQ> [accessed 16 February 2012] |
| Chicago | "QDDQ", http://www.acronymgeek.com/QDDQ (accessed February 16, 2012). |
| CBE/CSE | QDDQ [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/QDDQ. |
| Bluebook | QDDQ, http://www.acronymgeek.com/QDDQ (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QDDQ, http://www.acronymgeek.com/QDDQ (optional description here) (as of Feb. 16, 2012, 12:24). |
| AMA | QDDQ. Acronym Geek. February 16, 2012, 12:24. Available at: http://www.acronymgeek.com/QDDQ. Accessed February 16, 2012, 12:24. |