| APA | QCD. (2012, February 15). In Acronym Geek. Retrieved 03:43, February 15, 2012, from http://www.acronymgeek.com/QCD |
| MLA | "QCD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/QCD>. |
| MHRA | 'QCD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/QCD> [accessed 15 February 2012] |
| Chicago | "QCD", http://www.acronymgeek.com/QCD (accessed February 15, 2012). |
| CBE/CSE | QCD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/QCD. |
| Bluebook | QCD, http://www.acronymgeek.com/QCD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, QCD, http://www.acronymgeek.com/QCD (optional description here) (as of Feb. 15, 2012, 03:43). |
| AMA | QCD. Acronym Geek. February 15, 2012, 03:43. Available at: http://www.acronymgeek.com/QCD. Accessed February 15, 2012, 03:43. |