| APA | QDDC. (2012, February 14). In Acronym Geek. Retrieved 17:14, February 14, 2012, from http://www.acronymgeek.com/QDDC |
| MLA | "QDDC." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/QDDC>. |
| MHRA | 'QDDC', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/QDDC> [accessed 14 February 2012] |
| Chicago | "QDDC", http://www.acronymgeek.com/QDDC (accessed February 14, 2012). |
| CBE/CSE | QDDC [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/QDDC. |
| Bluebook | QDDC, http://www.acronymgeek.com/QDDC (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QDDC, http://www.acronymgeek.com/QDDC (optional description here) (as of Feb. 14, 2012, 17:14). |
| AMA | QDDC. Acronym Geek. February 14, 2012, 17:14. Available at: http://www.acronymgeek.com/QDDC. Accessed February 14, 2012, 17:14. |