| APA | CQDU. (2012, February 15). In Acronym Geek. Retrieved 08:42, February 15, 2012, from http://www.acronymgeek.com/CQDU |
| MLA | "CQDU." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/CQDU>. |
| MHRA | 'CQDU', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/CQDU> [accessed 15 February 2012] |
| Chicago | "CQDU", http://www.acronymgeek.com/CQDU (accessed February 15, 2012). |
| CBE/CSE | CQDU [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/CQDU. |
| Bluebook | CQDU, http://www.acronymgeek.com/CQDU (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CQDU, http://www.acronymgeek.com/CQDU (optional description here) (as of Feb. 15, 2012, 08:42). |
| AMA | CQDU. Acronym Geek. February 15, 2012, 08:42. Available at: http://www.acronymgeek.com/CQDU. Accessed February 15, 2012, 08:42. |