| APA | D.E. (2012, February 14). In Acronym Geek. Retrieved 09:40, February 14, 2012, from http://www.acronymgeek.com/D.E |
| MLA | "D.E." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/D.E>. |
| MHRA | 'D.E', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/D.E> [accessed 14 February 2012] |
| Chicago | "D.E", http://www.acronymgeek.com/D.E (accessed February 14, 2012). |
| CBE/CSE | D.E [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/D.E. |
| Bluebook | D.E, http://www.acronymgeek.com/D.E (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, D.E, http://www.acronymgeek.com/D.E (optional description here) (as of Feb. 14, 2012, 09:40). |
| AMA | D.E. Acronym Geek. February 14, 2012, 09:40. Available at: http://www.acronymgeek.com/D.E. Accessed February 14, 2012, 09:40. |