| APA | Q.E.D.. (2012, February 12). In Acronym Geek. Retrieved 08:36, February 12, 2012, from http://www.acronymgeek.com/Q.E.D. |
| MLA | "Q.E.D.." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/Q.E.D.>. |
| MHRA | 'Q.E.D.', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/Q.E.D.> [accessed 12 February 2012] |
| Chicago | "Q.E.D.", http://www.acronymgeek.com/Q.E.D. (accessed February 12, 2012). |
| CBE/CSE | Q.E.D. [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/Q.E.D.. |
| Bluebook | Q.E.D., http://www.acronymgeek.com/Q.E.D. (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, Q.E.D., http://www.acronymgeek.com/Q.E.D. (optional description here) (as of Feb. 12, 2012, 08:36). |
| AMA | Q.E.D.. Acronym Geek. February 12, 2012, 08:36. Available at: http://www.acronymgeek.com/Q.E.D.. Accessed February 12, 2012, 08:36. |