| APA | ED.. (2012, February 11). In Acronym Geek. Retrieved 17:27, February 11, 2012, from http://www.acronymgeek.com/ED. |
| MLA | "ED.." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/ED.>. |
| MHRA | 'ED.', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/ED.> [accessed 11 February 2012] |
| Chicago | "ED.", http://www.acronymgeek.com/ED. (accessed February 11, 2012). |
| CBE/CSE | ED. [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/ED.. |
| Bluebook | ED., http://www.acronymgeek.com/ED. (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ED., http://www.acronymgeek.com/ED. (optional description here) (as of Feb. 11, 2012, 17:27). |
| AMA | ED.. Acronym Geek. February 11, 2012, 17:27. Available at: http://www.acronymgeek.com/ED.. Accessed February 11, 2012, 17:27. |